My ratings.

Directbet – 5
Nitrogen – 3
Anonibet –2

Directbet 5
Nitrogen 2
Cloudbet 4
Jetwin -4
Anonibet -5

Site: Directbet
Rating: 5

Great site for sportsbooks!

directbet 5

nitrogen 4

jetwin limited my account , i can bet only max 8-25 EUR ,   earlier this limit was 600-1200 EUR (they reduced it to 1% like bet365) 

yes, a "bitcoin bookmaker" called jetwin will put 0.04 BTC - 0.12 BTC limit on your account  within 2 weeks (less than 20 bets)

As far as I know, directbet is basically the best.  You have to be a pretty high-roller to take advantage of their loyalty program, that's my only complaint.

for  directbet 5 and nitrogen 3 

Coindrafts are dead, site is gone, their admin hasn't logged on to this site in over a month. They owe me 8.2btc.

Directbet 5

I haven't used others yet.