My favorite conference is without a doubt the SEC. It just looks right. Even the whole game day atmosphere looks great on tv it looks like it should and the games are top notch. I'll watch most any game that I happen to catch on tv. Some other teams I like watching are Boise ST., Texas, occasionaly a PAC10 game, an occasional Penn St or Wisconsin too. Don't mind watching the ACC either.
I think Boise ST is my single favorite team but I enjoy any SEC game.