I said in a couple of other posts, I believe stat for stat comparison the LG out of the box offers more than Charge and HTC TB. I have owned the Charge for two weeks, LG Revo 2 days, and played with the HTC TB a lot in making this opinion.
Screen Displays are debatable (IMO-Charge is Best)
Screen Responsiveness (IMO- LG Revo)
UI Overlay (IMO- HTC TB)
Expandability (IMO- LG Revo- Revo tops out at 48GB)
Quadrant (LG Revo, unrooted smoked both of them)
File System (Tie TB/Revo)
Unlocked Bootloader (IMO LG is more friendly, HTC changing stance)
Battery Life (Charge, Revo close second)
Advanced Feature/Future proofing (IMO LG Revo due to VoLTE)
RAM (Tie TB/Revo each have 768MB)
4G Speeds (Tie across the board)
3G Speeds (IMO LG Revo)
Less Connectivity Problems (LG Revo, so far)
Weight (Charge/Revo tie, the Charge is lighter, but bulkier)
These are opinions of course.