My vote goes to the 1980's. In addition to the top grossing films listed below, I would add Stand By Me, The Breakfast Club, A Christmas Story, and most of the John Candy and Chevy Chase movies to this list off the top of my head......
http://www.80s.com/Entertainment/Movies/TopGrossing/
1980
The Empire Strikes Back ($290.2m*) - The saga continues as Luke discovers the most shocking revelation of all! (#12 all-time)
Superman II ($108.2m) - Three villains from the Phantom Zone escape to wreak havoc on Metropolis. "Kneel before Zod!"
9 to 5 ($103.3m) - Dolly Parton, Lily Tomlin and Jane Fonda stick it to boss Dabney Coleman.
Stir Crazy ($101.3m) - Richard Pryor and Gene Wilder find themselves in prison. "We bad!"
Airplane! ($83.4m) - Robert Hayes tries to land a distaster stricken jet in this Zucker Brothers screwball classic.
Coal Miner's Daughter ($79.9m) - The rags-to-riches tale of country star Loretta Lynn.
Private Benjamin ($69.8m) - Sheltered Goldie Hawn joins the army when her husband dies.
Smokey and the Bandit II ($66.1m) - Cledus and Bandit return for another 24-hour run.
Ordinary People ($54.8m) - A family struggles under the shadow of tragedy.
The Blues Brothers ($54.2m) - Dan Akyroyd and John Belushi put their blues band back together to save the orphanage they were raised in. "We're on a mission from God."
1981
Raiders of the Lost Ark ($242.4m*) - Indiana Jones races Nazis to retrieve the Ark of the Covenant. (#21 all-time)
On Golden Pond ($119.2m) - Henry Fonda and Katharine Hepburn, old and in love.
Porky's ($105.5m) - A teen sex comedy raking in millions? Who woulda thought?!
Arthur ($95.5m) - Dudley Moore boozes and loses and ends up with Liza Minelli.
Stripes ($85.3m) - Bill Murray joins the military. "That's the fact, Jack!"
For Your Eyes Only ($62.3m) - James Bond rushes to retrieve a British encryption device.
The Cannonball Run ($59.9m) - A wild cast including Burt Reynolds, Dom DeLuise, Roger Moore and even a young Jackie Chan race from NY to LA.
Chariots of Fire (1981) ($58.8m) - Two British runners take a physical and spiritual journey on the path to the 1924 Olympics.
Time Bandits ($42.4m) - A young boy joins a group of time-travelling, treasure-hunting dwarves in this surreal Terry Gilliam fantasy.
Absence of Malice ($40.7m) - Hoping to break a case a reporter prints a story about an innocent man, and he vows to get even.
1982
E.T. The Extra-Terrestrial ($399.8m*) - Elliot befriends an adorable alien that just wants to phone home. (#4 all-time)
Tootsie ($177.2m) - An out-of-work actor dresses up as a woman to get a role on a soap... and falls in love.
An Officer and a Gentleman ($129.8m) - Navy brat Richard Gere sweeps Debra Winger off her feet.
Rocky III ($122.8 ) - Stallone takes on the king of attitude, Mr. T!
Star Trek II: The Wrath of Khan ($78.9m) - Genetically engineered series villain Khan returns to antagonize the crew of the Enterprise.
Poltergeist ($76.6m) - A family is terrorized in their new home by unfriendly spirits. "They're heeee-re."
48 Hrs. ($75.9m) - Convict Eddie Murphy and cop Nick Nolte team up to catch a killer in the perfect buddy movie.
The Best Little Whorehouse in Texas ($69.7m) - Dolly Parton and Burt Reynolds fight to keep the 'Chicken Ranch' open.
Annie ($57.1m) - Astoundingly overblown adaptation of the Broadway musical.
The Verdict ($54.0m) - A lawyer skips an easy settlement to redeem himself in court.
1983
Return of the Jedi ($309.1m*) - Luke finally becomes a full-fledged Jedi, but the dark side is stronger than ever. (#8 all-time)
Terms of Endearment ($108.4m) - Shirley MacLaine and Debra Winger live life to its fullest.
Flashdance ($94.9m) - Alex, a welder and exotic dancer, wants to become a ballet dancer.
Trading Places ($90.4m) - Dan Akyroyd and Eddie Murphy find out how the other half lives.
WarGames ($79.6m) - Young Matthew Broderick unwittingly hacks NORAD's computers and poises the world on the brink of WW III.
Octopussy ($67.9m) - Bond tracks a fake Faberge egg and a dead 00 agent to a plot to instigate world war.
Sudden Impact ($67.6m) - Dirty Harry on the trail of a vicious serial killer (is there any other kind?)
Mr. Mom ($64.8m) - Michael Keaton loses his job and becomes an utterly clueless stay-at-home dad.
Staying Alive ($63.8m) - Saturday Night Fever's Tony returns in this sequel directed by Sylvester Stallone!
Risky Business ($63.5m) - Stressed about college and trashing his father's Porsche, Joel does the logical thing... turns his house into a brothel!
1984
Ghostbusters ($238.6m*) - Who ya gonna call? The gang battles ghosts, goblins, and Gozar the Gozarian. (#23 all-time)
Beverly Hills Cop ($234.8m) - Detroit cop Eddie Murphy chases a killer to the very different environment of California. (#24 all-time)
Indiana Jones and the Temple of Doom ($179.9m) - Indy seeks the Ankara Stone in the film that lead to the creation of the PG-13 rating.
Gremlins ($153.1m) - Adorable creatures become malevolent destructors... don't get 'em wet and never, EVER feed them after midnight!
The Karate Kid ($90.8m) - Pat "Mr. Miyagi" Morita teaches Ralph "Daniel-san" Macchio to wax on and wax off.
Police Academy ($81.2m) - A group of misfits face off against police instructors.
Footloose ($80.0m) - Kevin Bacon cuts loose in a conservative Iowa town.
Romancing the Stone ($76.6m) - A romance writer teams with a low-life adventurer to rescue her kidnapped sister.
Star Trek III: The Search for Spock ($76.4m) - Kirk steals the Enterprise to return to the Genesis planet.
Splash ($69.8m) - Tom Hanks falls in love with the mermaid who saved him from drowning as a child.
1985
Back to the Future ($210.6m) - An '80s Michael J. Fox meets his '50s parents on their turf! (#33 all-time)
Rambo: First Blood Part II ($150.4m) - Stallone single-handedly saves a dozen POWs! "YO!"
Rocky IV ($127.9m) - Rocky takes on the Russians for the pride of the whole country. "ADRIAN!"
The Color Purple ($94.2m) - Whoopi Goldberg discovers who she is in the 1920s.
Out of Africa ($88.1m) - Meryl Streep falls in love with Robert Redford on a plantation in Africa.
Cocoon ($76.1m) - Old folks discover the fountain of youth in a swimming pool filled with alien pods.
Witness ($68.7m) - A cop must adjust to Amish life to protect a boy who was the sole witness to a murder.
The Jewel of the Nile ($65.6m) - Jack and Joan tire of their easy life in this sequel to Romancing the Stone.
The Goonies ($61.4m) - A group of misfits go on a treasure hunt to save their homes. "Goonies never say die!"
Spies Like Us ($60.1m) - Two CIA desk-jockeys are sent to Soviet Union to prevent nuclear disaster... or so they think.
1986
Top Gun ($176.8m) - Tom Cruise flies into the danger zone and takes Kelly McGillis' breath away.
'Crocodile' Dundee ($174.6m) - Paul Hogan introduces America to the land down under. "Now that's a knife."
Platoon ($138.0m) - Oliver Stone gives us his take on what Vietnam was all about.
The Karate Kid Part II ($115.1m) - Daniel and Mr. Miyagi travel to Okinawa for a tournament.
Star Trek IV: The Voyage Home ($109.7m) - Kirk and Spock time-travel to Earth circa 1986.
Back to School ($91.3m) - Millionaire Rodney Dangerfield returns to college to help his son get through.
Aliens ($85.2m) - Ripley returns to face not just one Alien, but hordes of them.
The Golden Child ($79.8m) - A detective specializing in missing children tracks down a very special boy.
Ruthless People ($71.6m) - Danny DeVito is delighted when wife Bette Midler is kidnapped!
Ferris Bueller's Day Off ($70.1m) - Ferris is determined to have a good time, school day or not. Leisure rules!
1987
Three Men and a Baby ($167.8m) - Selleck, Guttenberg, and Danson get a crash course in fatherhood.
Fatal Attraction ($156.6m) - Michael Douglas learns to keep his fly zipped when dealing with Glenn Close.
Beverly Hills Cop II ($153.7m) - Detroit cop Axel Foley returns to Beverly Hills to solve another crime.
Good Morning, Vietnam ($123.9m) - Robin Williams heats up Armed Forces Radio during the Vietnam War.
Moonstruck ($80.6m) - An Italian widow becomes interested in her safe fiancee's angry brother.
The Untouchables ($76.3m) - Federal Agent Eliot Ness hunts down Al Capone and his gang.
The Secret of My Success ($67.0m) - Michael J. Fox takes a shortcut up the corporate ladder.
Stakeout ($65.7m) - A cop has to watch his partner fall for the woman they've been assigned to watch.
Lethal Weapon ($65.2m) - Danny Glover and Mel Gibson team up to get bad boy Gary Busey.
Dirty Dancing ($63.9m) - A good girl falls for her bad boy dance instructor.
The Witches of Eastwick ($63.8m) - Three bored women summon Jack Nicholson to their town.
1988
Rain Man ($172.8m) - Tom Cruise and Dustin Hoffman determine that K-Mart sucks. Definitely sucks.
Who Framed Roger Rabbit? ($154.2m) - Bob Hoskins meets cartoon characters in this zany classic.
Coming to America ($128.2m) - Prince Eddie Murphy comes to Queens, NY to find a queen.
Big ($115.0m) - A young boy undergoes the ultimate growth spurt when he wishes to be big.
Twins ($111.9m) - Arnold Schwarznegger and Danny Devito are twins?!?
'Crocodile' Dundee II ($109.3m) - Mick Dundee is back, this time taking on some poaching bad guys.
Die Hard ($81.4m) - Funnyman Bruce Willis packing heat? "Yippee-ki-yay, *&^#@ %^*&!"
Cocktail ($78.2m) - Tom Cruise tends bar.
The Naked Gun ($78.0m) - World's goofiest cop Leslie Nielsen has to foil an assasination plot in this Zucker comedy.
Oliver & Company ($73.9m) - Homeless kitten Oliver falls in with a pack of thieving dogs.
1989
Batman ($251.2m) - Michael Keaton's Dark Knight takes on Jack Nicholson's Joker. (#17 all-time)
Indiana Jones and the Last Crusade ($197.2m) - Father and son Sean Connery and Harrison Ford seek the Holy Grail. (#42 all-time)
Lethal Weapon 2 ($147.3m) - Glover and Gibson go after a corrupt official with diplomatic immunity.
Look Who's Talking ($140.1m) - Baby Mikey thinks with Bruce Willis's voice.
Honey, I Shrunk The Kids ($130.7m) - Rick Moranis accidentally makes his children microscopic!
Back to the Future Part II ($118.5m) - Marty has to return to 1955 to fix events - without running into himself!
Ghostbusters 2 ($112.5m) - The gang is back to deal with a powerful demigod wreaking havoc.
The Little Mermaid ($109.9m) - A mermaid princess makes a deal to gain legs.
Driving Miss Daisy ($106.6m) - Morgan Freeman carts around Jessica Tandy in the 1950s.
Parenthood ($100.0m) - The trials and mishaps of Steve Martin's family and friends.
I do like movies from all the years posted. If it is a good movie then I don't care when it came out.