Perhaps it's the climate or the way I use my binoculars or maybe I'm just plain weird but for me optical performance has always been Number One, with all that armouring stuff close to a complete irrelevancy. I'll always select an optically good but delicate binocular over a well-built but optically inferior one. Just a personal preference. I understand that for some climates/applications this may not be a realistic attitude.
I've seen this kind of argument too many times and finally I must ask: what is accomplished by saying binocular X is sharp edge to edge compared to binocular Y while knowing that X's apparent field of view is full 10 degrees smaller than that of Y? I mean, obviously one can make a binocular that's sharp edge to edge by cutting off the unsharp bits - what does this prove exactly?
Exactly. You don't notice the edges on the EII that much because you have to roll your eyes to see them.