So far I've only used Match and CoffeeMeetsBagel.
I've noticed that CMB now only matches me up with Asian women despite the fact that I'm open to dating any ethnicitiy.
I'll post my CMB stats in another time but unfortunately I can't read ethnicity/height preferences in the same fashion as I can with Match. It's a shame because it's really important data in helping me determine whether or not I should even pursue someone.
But I've bookmarked your name so that I can contact you when I gain a greater sample size for CMB and Eharmony (which I'll test soon)