Well I preordered the Vive. I now have the Oculus Rift and HTC Vive preordered. My game plan is to monitor impressions over the course of April and decide which preorder to keep before either of them ship (can't afford both).
If you can, even better would be to find a place or places to try them both out. Comfort seems to be dependent on the person and it's not easy to describe VR experiences. Might be some nice gaffers nearby if there aren't demo units available, VR is fun to show off.