One of my favorites is IGT's Carnival of Mystery -- 243 'ways'. There's is another... Aztec Temple... Never ever won a penny off the Aztec one (no matter the casino). Carnival though.... it's a favorite and has saved my butt from going broke before dinner time (due to playing VP... pfffft!) many times.
OMG Mousey, these have been two of my favorites for the last year. I went tonight and my friend won over $200 on Aztec...of course I lost but I have won over $1000 by starting at .50 and getting up to 1.25 per spin.