I'm sure you can tell a few of them by just looking around this page.
Ninjas, Stitch, Zim, Zod, The Predator, Batman, Superman, Wolverine, Homer Simpson, Stephen Hawking, The Iron Giant, The Dude, Super Mario, Obi-Wan Kenobi, Jason Vorhees, Optimus Prime, Unicron, and a Unicorn.
Alanis Morissette, Queen, They Might be Giants, Guns n' Roses, Jack Johnson, John Ottman, John Williams, Pearl Jam, Death Cab, Dragonforce, Gorillaz, Nirvana, Calcutron, and a lot more.
Starting with my top 3, then in no particular order... There's a lot of movies I love that aren't in here. But that's the gist of it. My two least favorite are X-Men 3 and Batman & Robin
Everything Adult Swim, the Daily show, Colbert, The first season of Lost, Battlestar Galactica, Heroes, and One Tree Hill because I have to. Also, recently I got into Northern Exposure. It's actually a pretty good show.
V for Vendetta, Watchmen, Transmetropolitan, Preacher, Superman for All Seasons, Identity Crisis, Batman: Year One, Batman: The Long Halloween, The Dark Knight Returns, Superman: For Tomorrow, Sin City, and many more. Also a big fan of Enders Game, Fear & Loathing. I'll read anything that isn't a "For Dummies" book.
Will Rogers, Christopher Reeve, my mom, and my dad, Shigeru Miyamoto, and the Predator.