Both. I drink a glass of wine everyday with dinner, usually Merlot, but a cold beer in a bar with friends, can't beat it.
Beer all the way. I would rather not drink over-priced vineger. A nice glass of cider (Or hard cider I believe you Americans call it) is definitly a strong contendor for top spot.
I cant really chose, 90% of the time I drink beer, but sometimes a good wine is difficult to beat. Beer is better for straight up partying, while wine is better for more refined situations and generally better to pair with most foods. I, I, just cant decide.