Generally speaking, all things being equal, you'll do better against 2 decks than 6.

EV is higher, but so are the fluctuations.

That said, it is going to depend on the rules and penetration of each, how close the mgmnt watches the tables, how big a spread you can get on with each, how many other players are playing at the respective tables. Can you enter and leave in midshoe?

Can you decsribe each game?