In order of my preference: Craps, Blackjack & Poker.
Craps is the game for those of us who are ADD/ADHD
ALWAYS something going on!
Blackjack because you can sit there and have a drink and at low stakes, usually come out fairly even if you don't get too drunk and crazy. I always use my BlackJack Strategy card so that I can blame the card when I lose !
And Poker because it is so fun to cause other people to go on tilt doing things to drive them crazy!