Go w/ the Omega... no F'n disks to mess with for one.

But in reality.. get to your local store and shoulder both of them.. and pick wichever one feels best to you. I personally love the feel of the thumbhole Omega in laminated wood... but don't really care for the synthetic thumbhole due to the mold line cutting into the webbing between my thumb and finger... but nothing a little sanding wouldn't take care of. And I hated the feel of the Revolution Anniversary thumbhole.. just didn't fit me at all. I'm sure that both will shoot very well.. I know my Omega does. So to each his own..