Ti is less likely to flex. Therefore snaps more easily. Therefore not good for major bike parts.
I don't want the WTP hub, one of my friends has it and if he tightens the wheel fully, the bearings become 'pinched' and the wheel doesn't spin very well. It's not just his hub, it's on all of them.
Kinetic, I got 2 of the rear ones, I figure they'll work all round and even at trails if I ever get some made.
Also, not sure on the vandero, It is a possibility, I just love how smooth the bearings are in Bulimias