ITA.

I have a fondness for the 80s because they were part of my youth. Films like E.T., Raiders of the Last Ark and Aliens will not seem too dated because of the genre but most other films from the 80s do seem very dated and cheesy when you watch them again. However, I loved that the 80s were a decade of young actors. Apart from the infamous John Hughes flicks you also had Lucas, Goonies, Wargames, Back to the Future, Lost Boys, Stand by Me, The Outsiders, Karate Kid, Legend of Billie Jean and so forth.
But as much as I love the 80s, I'd have to say that the 30s & 40s are probably the best. These 2 decades were chock full of vintage performances from Hollywood legends. How could you not love screwball comedies like Easy Living, You Can’t Take It With You, Arsenic & Old Lace and Duck Soup? Then you also had some classic thrillers like Notorious, Shadow of a Doubt, Gaslight, Rebecca & The Picture of Dorian Gray. And although I am not big on musicals I can’t help but be entertained by The Wizard of Oz and the Deanna Durbin musicals of the 30s. As for dramas…Gone with the Wind, The Maltese Falcon, Casablanca & Citizen Kane have become film treasures.
My least favourite eras? Probably the 60s, 70s & 90s. The 60s felt like a 'transitional' decade caught between the big production glamour of the 50s and the dramatic edginess of the 70s. As a result, I don't see much of an identity to the film decade as a whole. As for the 70s…. the aesthetics of that decade leave a lot to be desired. Many (but not all) of the films had poor musical scores (eg. blaring trumpets, plink-boink! sounds) that are grating to listen to. There was also a grainy/seedy/filthy look to many of the films whether they were western or urban. Of course not all was bad. The Godfather obviously is a classic from this era. And some very good SF like THX1138, Logan’s Run, Alien, Jaws and Close Encounters of the 3rd Kind helped pave the way for the SF of today. The 90s was a bit like the 60s. Caught in transition.