I think there might not be much of a choice for many people, if the deals for the N1 are similar to AT&T's. You might not be able to get the n1 with a family plan and the incredible might be priced less than the n1 for customers who already have verizon.
Also, I would think the problem with the n1's screen would be fixed with the verizon model when it releases (and for new AT&Ts). From what I have read, it's just a sensor issue which shouldn't be hard to replace for new models.
If the n1 has about the same price and plans though, it's just going to be preference on looks most likely, unless you use the camera a lot.