Gary, you of all people should be able to help him. His question is subjective, as there is no "defined" better phone. Since you have long term access to both, maybe you could tell him some of the quirks of both phones. Also, I think he is looking for opinions, so, yours would be highly relevant considering your situation.
As for my opinion, I've never held the fascinate, but I do love my Incredible. Maybe you might want to hold off a bit though, because theres supposedly an HTC Droid Incredible HD coming out soon. Basically, think of it as the Evo for Verizon. THATS what I wanted. An EVO. I just didn't want sprints expensive plans, or crappy customer service.
I know, I know, sprint is generally cheaper then verizon, but the lowest price they could offer me, for what I wanted, was about 85 dollars after taxes. I have everything I want with verizon for 65 after taxes. I told this to sprint, told them essentially I'm using it just as a data package with no need for 350 minutes (or whatever it was). I asked if they could shrink the amount of minutes to shrink the bill, they said no. Verizon said yes. Verizon is cheaper for me. I only have 50 minutes, but the past 3 months i've used less then 30. If I'd have waited just a bit, I'd love the incredible HD. Although i'd still be paying the old Alltell rates of 110 a month, with no other phone to use other then an HTC Vouge.
Wow, I went on a mini-ramble there...
But yeah, moral of my story, wait for the HD Incredible.