Stud variants are fun but I don't like not being able to multitable. Since I've been 6+ tabling HE lately, single tabling stud has been tooo slooow, especially when I'm just playing for fun.

I really like Omaha Hi/Lo but never really play Omaha Hi. Omaha really makes sure you can spot the nuts on any board, and if you miss them, you'll sure hope to remember next time. :P But after I got almost decent (not getting owned all the time, ha) I went back to playing HE and just playing Omaha occasionally for fun.

I also like playing five card draw to chill out a bit, it's fairly cut and dry.