You can't "disable" sense completely. You people still don't get it. Sense is not just a launcher for your home screen. Open your contacts apk on a Sense device, and then on a Vanilla android device. Open the browser. The UI has been overlayed over EVERYTHING. There's no need for it. That's why I hate Sense. If it were just a home screen launcher, I'd be fine with it. If you "disable" Sense, it's still there. Sense devices are just horrible.Because the interface was murdered by HTC with the addition of Sense. I have despised the Sense UI ever since I owned the Eris. The Eris was a piece of crap, this phone will be a piece of crap with a better processor. Big deal.
To be fair the device itself is very competent, it's just that some people, like yourself don't like the Sense UI. I would argue that this is fine and you should just disable it like all the other Sense UI devices and go stock Android. Unfortunately you cannot disable Sense on the Incredible.
As for the N1 over Incredible the only reason I would choose the N1 is the fact that it gets its' updates directly from Google. No waiting for 2.2 or 2.x to be rebaked prior to distribution whether OTA or via local download/PC. So in that sense yes the N1 is superior to the Incredible.
Your opinion. As mentioned, others really like sense. That being said, the basic speed and fluid motion have great been improved on this phone of the N1.