A close second has to be the Mario Kart drinking game, though. Not the best for actual parties, but for get-togethers with some close friends it can't be beat...
 1st place: 1 drink
2nd place: 2 drinks
3rd place: 3 drinks
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Now, if you get below this line, you double the amount of drinks you take. Trick is though, that if you get below this line a second time in a row, you triple the amount, then quadruple, and so on and so forth until you break into the top 3...
So say you come in 5th, you would take 10 drinks, and then next round you come in 4th, you take 12. If you break into the top 3 the next game, it's reset and you would start from doubling, but if you come in, say, 7th that next round... 28, boy. Gets you hammered haha.