The difference between 3:2 and 6:5 is the amount that you need to bet against the winnings you will receive. 3:2 is a lower payout, but the game is easier and the chances of winning are higher. But, not many casinos are playing with a 3:2 payout. Most casinos prefer 6:5. The bets are higher, and the payouts as well. However, the game is more difficult, and winning is harder.