Well by quantity of what I drink, it's some kind of lager, usually Yuengling. If I'm being cheap I'll get Miller High Life or PBR.
I like a Hefeweisen a lot though. Most of the regular stores by me don't carry more than like one kind. Last time I was looking for one, the only thing I found that looked like it was Weihenstephaner Hefe Weissbier. I figured since I couldn't pronounce the name it had to be intense and German. Anyway it's great stuff, and for once I bought a beer that RateBeer.com likes. It got 99th percentile!
I like Ales, Pilsner, Amber/Red... pretty much everything except the real stern stout beers that taste like coffee. Some Pale Ale and IPA is good, but it's not something I drink a lot of. Don't care for the real dark ones. Not that they're terrible just they're usually so expensive I want to spend my money on something I know I'll enjoy lots.