If you play 6:5 Blackjack games you get paid $6 for every $5. This means that a $10 bet will get paid $12 in total. At a 3:2 Blackjack game, you get paid $3 for every $2 bet. That means a $10 bet pays $15 on Blackjack. Clearly, the 3:2 Blackjack option is the better option.