Hello Darkstar, thank you for your excellent work. We would like to point out that our margins are competitive with, or better than mbit casino and sportsbet.io for NFL, most MLB, most UEFA and EPL as well as many others. You should include Betcoin.ag Sports in your analysis. We actually strongly believe in what you are doing and fully support you. You should certainly include one of the first and strongest Bitcoin sportsbooks in the marketplace.

Based on your analysis, we will also be making some changes and will look to you and others for their feedback and experience. We look forward to your thoughts and are always looking to improve. We have worked very hard to make the sportsbook better and continue to try and improve by requesting feedback often. In fact, we just tripled our maximum wager size to 300 mBTC last week!

While we do not currently offer any sports bonuses, we did just institute a sports VIP program where players can earn status points on their sports play to increase your VIP level which can lead to lossback and betback on casino play and soon on their sports play.
https://www.betcoin.ag/betcoin-sports-re-launch-out-beta-get-your-past-status-points-10x-points-next-month

Regarding promotions, we are currently giving away 2 BTC over the regular season in our NFL BitConfidence pool.
https://www.betcoin.ag/nfl-football-promo-bitconfidence-pool-2-btc-guaranteed-prizes
We have been running promos with huge guaranteed added prizes like this for most major events, including most recently the US Open Tennis and World Cup.

Lastly, some other things that set us apart are our large amount of markets per match and our withdrawal times. We see that some of these sites only offer ML, Spread and O/U. We include up to 200 markets for both LIVE and PRE-MATCH for football (soccer) and up to 100 for American football, basketball and baseball. The new provider also has much faster and more accurate grading. We also average 15 minutes for processing of withdrawals, INCLUDING WEEKENDS.

We think it is unfair to call our sportsbook not competitive or say there is no reason to play there. Each sportsbook you mentioned (some of which we recommend ourselves) has it's pros and cons and we hope you would give us another try because there are definitely benefits to playing at Betcoin Sports.

Damn you DarkStar, after reading this im now addicted to checking all the margins for my bets before placing them 

Really useful guide though. Could you please add some detail about the territories that the sportsbooks allow? Im not sure if any of the good ones allow UK players