I also think sportsbet should be here. They accept FIAT, but they are largerly crypto sportsbook.
Almost all books now accept crypto-currencies and it's the number one deposit and withdrawal method for many. Sportsbet has a high presence here and is very popular but is dangerous to make exceptions to thread rules. There are too many books in the same class as Sportsbet.
If Sportsbet were to be graded using the criteria of this thread they would be graded low. Popularity doesn't equate to quality.