share at cryptogames.net (979 bitcoin bankroll) will be 0,051%, share at moneypot (738 bitcoin bankroll) will be 0,0677%.
Since moneypot is not profitable for a long time, i wouldn't invest there, leaving you a chance between cryptogames and betking. Cryptogames is having lower house edge on dice than betking, but is having higher on other games and giving you higher percentage in bankroll.
It's also explained in this post: http://bitcoingamblingreviews.com/bitcoin-gambling-investments-212/
Based on that i would choose cryptogames
Betking has a lot of whale followers, which means that they may actually have more volume and thus more profits over time than cryptogames. They don't really have many whales. Lots of botters though.
Yeah huge whale means that your site will have more chance to lose or to get profit though. That is why you really need huge bankroll. But if you compare betking to cryptodice, they cant be compare though because with huge bankroll sure you want good profit but with high risk too but with small bankroll, it will be less profit for sure but the risk wont be high. So actually both of their site is the same though