Music, films (both mainstream and indie/foreign), gigs, reading, poetry, art...anything that ignites the imagination. If combined with some nice food then even better. Also, going to the gym (to burn off said food) and seeing friends...
Kermit the Frog...but that could prove tricky, so I'll settle for anyone friendly with similar interests.
Also love meeting people from other cultures and countries, which is one of the advantages of living in London.
Electronic, classical, experimental, dance, some rock (many of my favourite albums are rock music, but the vast majority of rock is dreary, conservative, and boring - it's so safe that even my parents would probably be too embarrassed to listen to it).
Bladerunner, Requiem for a Dream, The Edukators, Star Wars (of course), Run Lola Run, Drugstore Cowboy, Dig!, and loads more that escape me right now.
Don't get a chance to watch very much. The Mighty Boosh (on DVD), and Arsenal when they're on. Plus anything Chris Morris related.
Hubert Selby Jnr, Bukowski, Hunter S Thompson, Carlos Casteneda, Robert Anton Wilson, Bill Drummond. Generally, psychology, philosophy, music biography...and lately, graphical novels (shoot me now).
Ludwig van Beethoven. No-one else comes close.