I really dig my Revisions, and my ESS's.
I believe the Revisions are stronger because of the single piece lens. If IED's and or incoming rounds (like in a real live war situation) were a possibility, I'd want my Sawfly's on.
For the range, the ESS's fit my face slightly better and I look cooler in 'em :wink:
I give my ICE Naro's to my girlfriend when we're both at the range.