I'm curious if you're thinking that you'd PREFER XRP to BTC. If so, why is that? The only reason I can think of is that it's going to be a more liquid market, which is terrific, but XRP has much less time testing than what BTC does. It hasn't "proven" itself in the way that BTC has. In that regard, I think BTC is more "stable". Plus that, you can trade BTC for XRP at any time through your own Ripple Wallet...

Furthermore, I think Ripple has the capability to add XRP to the system at any time. Kind of the functionality of a central bank. Kind of counter intuitive to one of the main reasons crypto-currencies exist, IMHO.