Still can't tell a huge difference, just the brightness. It appears one is bright, two is a bit darker, and three is darker still.
The wmv file you sent me appeared bright overall when I played it, but all three versions you posted today appear to be properly bright, so any discrepancies aren't as noticeable. That being the case, I think any of them look good. I'd vote for number two, just because it's a middle ground between three equally good options.
Since I am delaying v2 a bit, I'm taking the opportunity to go back and give Episode II more film grain.