Reading elsewhere on this forum, it seems that glass quality/precision has been mastered so long ago that pretty much any scope will have great glass. What’s different between manufacturers/lines is the coatings on the glass. I felt that was in evidence between the Athelon, Meopta and Burris. All three scopes were extremely clear and provided equally fine detail. Where the Burris set itself apart was its ability to enhance color and depth. I’d say the Athelon and Meopta are like my Oakley sunglasses - perfectly clear and functional. The Burris is like my Costa Del Mar sunglasses, not necessarily any more clear than the Oakley’s, but they do render colors in a way that actually enhances my vision.
I’m not sure everyone would experience the same thing. I have very light-sensitive eyes. Probably thanks to my ancestors living 10,000 years somewhere it rains all the time. Your eyes might be equally happy with all three scopes. Mine just really felt comfortable with the Burris.
Keep in mind I’m buying this scope for hunting. The Burris’s ability to enhance color contrast for my eyes is a big plus for me, as I’m trying to pick out brown animals against a brown backdrop. If I were shooting paper or plates, the Athelon or Meopta would be just fine. Similarly, the more forgiving eyebox and easier parallelex adjustment on the Burris is a plus for hunting. I’ll probably have limited time to set up for a shot, so less time fiddling with things gives me more time to regulate my breathing and make a good shot.
All told. Saving a little longer for a Burris is worth it for me, because I’m using it for challenging hunting situations and because I have wimpy eyes. If I were primarily shooting at a range, I’d go with one of the lower-priced options. Probably the Optica just out of bias for something not Chinese.
As far as build quality, the Athelon felt a little more fragile to me than the Burris and Optica. That may might just be my bias at play, though. I didn’t perform any tracking test, which would probably be a real, verifiable way to tell.