I hardly watch any NCAA basketball during the regular season but I love March Madness. I have brackets at Yahoo, Chicago Tribune's Chicagosports.com, and a couple lesser known pools.
My best one so far is the one below (it is a pick each round only as you go - as compared to most where you pick all the games at once.) My other brackets are doing okay, but I need another round of games to sort out the ones I want to cheer on for the finals. (I have different teams picked to win.)
1 out of 1,673 100%
62 out of 87,073 99%