Bitcoin XT is basically a new bitcoin that is profitable for Coinbase. No one supported it from the beginning. No one will in the future. The original is the one and only, and no fake can best it. Bitcoin XT was never going to be a success, anyway.
I support BIP101 because it best represents the true and original Bitcoin and the principles it stands for. Satoshi had always intended to increase the block size back up again, the one megabyte limit was always intended to be a temporary limit. Therefore XT is the true Bitcoin, since it will increase the blocksize and presently Core has no plans to do so. Today both XT and Core are Bitcoin, this will remain true until the date of the fork at which point we will have bigger blocks if that is what the economic majority chooses. This freedom, this volunteerism is Bitcoin, whether you like it or not.