Most liberal 6:5 vs tightest 3:2!
The tightest 3:2 game is better than the losest 6:5 game.
I went into wizard of odds and I typed in an 8 deck game where you could only split once, dealer hit on soft 17, you could not double after a split, and blackjack paid 3:2 house edge with basic stragedy 1.12%. That is unrealsistically bad rules.
Than I typed in a one deck game with double any two, double after a split, stay on soft 17, split up too four times including aces, draw too split aces allowed,
blackjack pays $120 for $100 bet or 6:5. House edge 1.17% and those are unrealistically good rules for a 6:5 game.