For what it's worth....
The Versus line has a little more padding than the "regular" line.
I have an Aliante Versus (I LOVE it), and it has a little more padding than the regular Aliante. Fizik had it all on their site when I was looking for it. I'm too lazy to go looking for it now, so you'll just have to trust me.
Just my little sort-of-relevant tidbit of info.