I would like to place my votes on Nitrogen Sports and Cloudbet as those were the only ones I have tried so far.
Nitrogen Sports: 4
Cloudbet: 2.5
As Nitrogen gives you SO MUCH GREATER odds, it loses a lot to Cloudbet by just allowing live bet on very specific events (at least that was the way it was in the start of the year).
Cloudbet loses a lot by the odds and the terrible support, unfortunately. Cloudbet even has more sports, but unfortunately, in the end it is not enough.
That's really sad they have starting adjusting there software means starting implementing there software or not? Like it is a big lose for them and there client will join there competitors now oh that's really bad.