1. Display looks better than the X and even the original Droid. Far sharper than my Inc. Does not appear washed out like the Droid 1 did. Can not figure out why though, since LCD like D1....
2. Signal reception seems the same as X and Inc (which is fine). Only tested in the area around the VZW store, though.
3. Call quality puts my Inc to shame
4. Sound quality for music is same as Droid and X, but not as good as Inc. Not saying it is bad, just less volume and less depth of sound IMO.
5. Keyboard is FAR better than the Droid 1
6. Never used Froyo before, but comparing web sites same time with my Inc- the Droid 2 kicks Inc's butt for speed and I now see what I am missing with Flash Lite, compared to full Flash

I think the performance is due to Froyo and not hardware, since both have 512mb.
7. Apps2sd does not appear to work, but the device has 7.4gb free for app storage- apps2sd IMO is pointless as a result, for this device.
8. Could not test wifi and did not test video. I already know from the X vidoe is fine anyways.
I must admit that if I did not already have my Inc, I would get the Droid 2, due to the great keyboard on the D2. It works SWEET with game emulators!!!!
added:
The keyboard's sweetness eases the sound quality issue, compared to the Inc. Though I prefer plain Android, I still prefer Sense over the Blur junk- even less Blur is annoying to me.