You'd be wise to read up on the Incredible's battery life and then see what you think. I thought it was the perfect phone and had been set on getting it until I read such widespread complaints about its battery, including from a couple of friends of mine who have Incredibles. They love it, but they don't love its battery. These are modern, full-featured, big-screened, connected smartphones, so none of them are great with battery life, and many require you to be careful about things like screen brightness, radio usage, certain kinds of app usage, and other settings, but it sounds like the Incredible is bad even within that context and has trouble making it through a full day without a lot of tweaking and miserly use. That's a dealbreaker for me. I don't want to have to worry about that or actively manage the thing throughout the day to make it through. I charge every night anyway, but I need a full day of average use plus a little cushion for unexpecteds. My information is all second hand, unlike the people posting here who own one, so take that grain of salt, but this is what my research turned up.
What we don't yet know, however, is how much better the TB will be in this regard. We know it has a worryingly small battery (many of us expected a bump up from the 2010 average, not a bump down), it has a substantially larger screen than 2010 average (eats more power), yet it has a 2nd gen processor which is supposed to use less power than the 1st gen. Between those factors and other power-management variables in the TB, we don't know what its battery life will be like over time for various usage patterns, so it's hard to say whether you'd be missing better battery performance if you got an Incredible instead. We do know that 4G apparently kills it within a matter of hours, but that appears to be the case for all of the first wave of 4G phones. I'm wait-and-see on the TB and no-thanks on the Incredible. Go google Incredible battery issues and see if it sways you or not. I'm sure the Incredible forum here has lots to say as well.