I agree with Tonyg that craps has great odds especially when the table is hot. In general I find that Pai Gow Poker has the best odds. They are so good that the house takes a commission when you win. Having said that casinos are built on your losses, so don't go crazy with your kids college funds!
Blackjack with good rules; single deck, dealer stands on soft 17, double on any first 2 cards, double after split. This is a hard game to find. Any variation of blackjack that pays 6 to 5 is a terrible game fir the player even if it is single deck, avoid at all costs.