Here's my input:

- Powerbet - 4.5 - best odds on major competitions, instant withdrawals, average promotions (I like the parlay bonus though, but they should put up more periodical promotions - the reason they are not given a full 5 point score)
- Nitrogen - 4.5 - very good odds all around, just a bit under powerbet - fast withdrawals - high limits - weak promotions (again the reason they don't get full 5 point score, just like powerbet)
- Cloudbet - 3.5 - their odds vary from being equal to Nitrogen to being worse than Directbet (looks like a trap since they're mixing good ones with bad ones, even on the same competition) - usually fast withdrawals - pretty weak promotions
- Sportsbet - 3.5 - odds are quite bad, but they are the best at promotions and all 3 bookies above could learn from them. Withdrawals are fast.
- Directbet - 2.5 - constantly providing the worst odds (with the exception of those trap odds from cloudbet) - no serious punter should ever consider directbet over the first 3 bookies - instant withdrawals and constant bitcointalk directed promotions kept them from getting the minimum score