I agree with the misfit!
I agree with misfit's last comment; some of the differences are between systems are so small that it requires many millions of simulated hands to differentiate between them.
As I always tell any friends who ask, since most of us don't get that many millions of hands, the differences in systems pale in comparison to the differences in our ability to implement them. From that vantage point, it is far more important to choose a system that you feel comfortable with.