bodog, sportsbook.com and bookmaker.com do best in that order
Intertops is pretty good, 5 dimes is slow and 2betdsi is basically the same as bookmaker but also ok.
Won’t touch Betus until the properly cross-integrate poker and casino tracking
I don’t fancy programs people sportsbook clicks and get nothing if they sign up at the casino instead. I do enough for charity at the moment.