My favorites are:
1) MTT (non-turbo) unlimited hold'em / 8 games. Because I like tournaments. I like to go through kilopolis and win big money for less buyin. Also because there is a lot of free time to play tournaments.
2) CIS (not turbo). Usually it is 180 max.
3) Cash game (limit games only) 8 games, pot limit Omaha 8, Horse.