Screen size doesn't mean shit, it's screen resolution. Then of course you have to look at "4G" compatibly. The other thing is, and most significant for me, is the Incredible going to continue to receive the latest Android updates? The Nexus one is the only phone with 2.2.1, and will be the first to receive 2.3. Not only is the incredible plagued with having Sense which is always slow on receiving updates, but it's getting to the point where it may be getting to the point where it won't be getting updates anymore. The G2 may have a lower clock speed for it's CPU, but it has a much better GPU.
It's an old ass phone, get something newer.