Just got back from Biloxi, the Beau is mostly crapjack unless you want to play higher minimums. For $10 it was all 6:5 or csm, except for two tables when I was there on a weekday afternoon. Those two tables of shoe blackjack for $10 were of course full. I didn't check out the double deck as it was out of my price range.
Biloxi isn't all bad though. The other places I have been to were playable.