[Genesis]

100% rakeback at:
$1/2 6max limit is about $5/100
$2/4 6max limit is about $9.50/100

Unless they have a good bonus going, no site can beat that return. For a casual player, you may be able to beat it because you can find enough of these good bonuses around that amount to > 100% rakeback. For anyone who plays a lot there aren't enough of these bonuses. This is especially true now that a lot of the processors (Neteller and such) are out of the US, making moving money around to get all these bonuses darn near impossible.

That being said, the games are tough. But the returns are good if you don't mind being a break even player.