I have both MagicDice and DrugWars accounts. They both looked reasonable in the beginning but as they keep changing the rules, in their favor, it has turned me off of both of them. I bet very little and use the 94% probability and still get way too many rolls over 94. So I'm sticking with Texas Hold'em. At least the decisions are mine on how to play. DrugWars is disappointing as well. Luring everyone into creating accounts and building assets with the promise of payout in STEEM, then - yep - changing the rules. I am in profit on my account because I haven't put any of my own money in it since the very beginning. But it's a very small profit and the game changes with no instructions, so it's not even fun to play.
That is from my reply below. Since you mentioned Holdem (my game of choice) I thought I'd point out that Krypto Gamers.