Quality over power. But a scope/eyepiece that tops out around 50-60 is about right. I don't like counting rings, but I'd much rather have the Leica at 50X than most anything else at 60+.
Many of them get really difficult to use at higher magnification and seem to go to zero or negative eye relief. That said, you can always dial a 60 back to 50, but you can't spin a 50 past 50.
