Shouldn't this be Ripple vs Ethereum? Ethereum has a stronger development team and wider scope than Ripple. Bitcoin isn't even designed to do the same thing.
This assessment is based on what exactly?
Anyways, I agree: Ethereum, eMunie, NXT, Mastercoin, Colored Coins etc. are the things you should compare to Ripple, Bitcoin is just something that is very well designed to be traded on these platforms.