The problem is going by anything that a guy with Belmo's rev shows. Over time I have seen him throw Hyroads, Phase 2, and other balls that had broad appeal. Likewise the Timeless was junk for most people, but You dont see Belmo throwing it anymore either. My guess is that the pro motion will be a popular ball because it appears you can hook the lane with it, and that is what a lot of guys want. Stu made it look pretty good for most of the finals.
Personally I go by what looks good in the hands of WRW or Duke. They are both in the low 300 rev rates.