I used the Meopta 8x42 side by side with a Leica Trinovid 8x42 two years ago (for a few days) and found the Meopta brighter and just as pleasing to use and look through. I also looked through the Meopta 7x42, and found it excellent, but the Zeiss 7x42 was nicer, so i ended up with the Zeiss
I know from reliable sources that the Zen Ray are extremely good optically, and that they have a slow and stiff focuser. This appears in many comments on the web. They are a fantastic value at their low price. However, the poor focuser is a deal braker for me, no matter how good the optics.
If i were buying without trying, i would buy the Meopta, most likely the 8x32, which is the best and most versatile in their line-up. I am more and more reluctant to send money to China. Their optics industry is the equal of any, their quality control can be just as good as that of any other, and i am extremely happy with my Nikon 50ED scope made in China or several other optics. My reluctance is based on political considerations.