I have had a luanch day Incredible (amoled), the Thunderbolt, and currently an Incredible2. To me I would rank them Inc2, Inc1, then the Thunderbolt.I had all three together at one time (before returning the Thunderbolt) and did a comparison.
The two Incredibles looked almost identical, with the Inc2 having a truer color representation. The Inc1 had a little more red in darker colors (like the grey on the status bar and unlock ring looked like gray but with a red hue to it) while the whites looked fine. The Inc2 however had almost the same contrast to me but with a more real color representation. The blacks were very had to see a difference on.
The thunderbolt was another matter however. It looked like the colors were completely washed out compared to the Incredibles. To get the same effect, turn the gamma setting up a bit on you desktop monitor. The picture was almost overexposed compared to the other two.
I did this with all screens set to the same amount on manual brightness. Basically it looked like the Tbolt's screen was set to 100% brightness and overexposed while the Incredibles looked like they were set at 25% (where I actually had all three). I wonder if that could be a contributing factor in the Tbolt's battery life. LTE was not an issue since we don't have it here and I used the Phone Info app to set it to CDMA only. I think this is also why the Inc2 gets much better battery life on 3G only as well.
I don't know if the Tbolt and Inc2 each use a different screen or if the screens were setup differently at the factory and contributed to the washed out picture on the Tbolt. But, if they used different screens I hope the used one similar to the Inc2 when building the Vigor's 720p screen. Going by the leaked pics of the Vigor's screen, it looks more like the leaked pics of the Inc2 rather than the Tbolt so hopefully that's the case.
As far as viewing outdoors, I've never seen a cell phone screen that wasn't hard to read in sunlight, whether it's smartphone or dumbphone. Even my old ipod wasn't easily viewable. The only screen that I have heard is easily viewable in sunlight is the Kindle's screen, but that's due to monochrome color and a matte screen, much like an anti-glare screen cover.
At this point I'm just ready to see this thing drop. I'm not going to get it sight unseen like I did with the Tbolt this time, & I plan to read every review I can find on it concerning battery life as well. If it's more of the same (ie like the Tbolt's battery life), I may be forced to go with the Prime. The only issue is I really like Sense and Samsung phones always worry me (cheaper construction, numerous bugs, bad update history, etc.). I may just wait until next year if that's the case.