Stud8 with PL omaha 8 are close together on the top of the list then its whatever is available. I really wouldn't care as long as its NOT NL or Fixed Holdem.
You can play so many psychological games in NL 5 card draw with people that are descent enough to be paying attention to what you are drawing and have a blast with it.
Raise it preflop, pull 1 and is that a draw to a straight or flush? Is it an obvious 2 pair, is it a set ? That's something I could play and enjoy all day long everyday with folks that can play a little.
The 3rd option can be any major form of poker as long as its not Limit or NL Holdem. Whether its 5 card draw, stud, razz, PLO, OE, HORSE (yeah Ill endure a round of holdem for horse) , any of the major draw game you want to play( KC, 2-7 etc) it doesn't matter.
Live, it used to be Stud if I wanted to play for enjoyment but NL holdem was where the dead money was. Good luck finding a bunch of folks that want to play other games besides NL Holdem live though. That's another reason why Black Friday killed poker for a lot of folks. Access to all those fun games went away.