Which do you feel has an overall brighter prospect for the future?
In my opinion it is XMR, from a technical and team point of view.
However, once confidential transactions are implemented on to Bitcoin, it is hard to see purpose for any other privacy coin.
CT doesn't fix taint, which means coinbase or any other exchanges following KYC/AML will lock you out of your account on suspicion--your tx will stick out like a sore thumb. Optional privacy is the same thing that plagues ZEC, so until it and BTC add mandatory privacy, XMR wins easily.