Sierrea Nevada Pale Ale
Guinness
Pilsner Urquell
Almaza
Harp
Those are the usual favorites. Lately, I've been enjoying this Sea Dog's Raspberry Wheat Ale. I do not normally go for fruit-flavored beers, but man oh man is that stuff delicious. They also have it blueberry and peach; the former is decent and the latter I have yet to try.
I've been a beer snob for the longest time, though lately I've found that Bud—as long as it's from the tap—is a suitable alternative if I'm at a bar and I don't feel like spending much money.