My favorites (in the order I think of them, not order of preference): Foster's, Labatt's, Moosehead, Heineken, Coors (I know), Miller Genuine Draft, Dos Equis, Michelob, Tecate.
My all-time favorite, which I can no longer find: Simpatico, a Mexican beer in a black bottle. I heard that the brewery burned several years ago and was rebuilt. I can't find this beer anywhere, and the last time I looked their website was no help either.
When I lived in Oklahoma City there was a microbrewery downtown, the Bricktown Brewery, that brewed a delicious reddish-brown lager they called Copperhead. Haven't found anything like it anywhere else.