Alltel TP vs. Verizon TP stay or go?

[talk2nate]

Hello all.. I've searched and found a bunch of threads with information. But none of them really steer me in. I currently have the choice to stay at Alltel and get a Touch Pro OR I can goto Verizon and get one now. (I'm part of the merger stuff)

I know people are saying the Verizon TP has a different chipset but I'm not sure how that effects my running cooked roms like wm6.5 and such.

Is there any "major" difference between the two phones I need to consider? I really need help deciding which path to go. Thanks!