Full frontal comparison: Atrix 4G on the left
The top 2 Android superphones are the HTC Thunderbolt and Motorola Atrix 4G. This photo gallery shows the two head-to-head. Don't miss the full comparison on ZDNet Mobile News by James Kendrick.
If the choice is between these two, by all means go with the Thunderbolt. The bigger screen is well worth it. While you're at it, get the extended battery. No, you can't get the fancy-schmancy cases, but you will appreciate the battery life. As most of us do not have 4G yet, I don't have a dog in that fight. But for everything else, go with HTC.