I don't have the UGA so I can't really compare the two. But something I noticed about the Supcase Unicore Beetle Pro and the holster...
The Holster doesn't put the Note7 to sleep while its in it. And there is a decent gap while in the holster, so the AOD is always active, unless you turn the feature off manually in the settings. Something else I nocited was, while the case itself is really good at keeping the edges of screen protectors down, if you're not careful about putting the case on, it can start to left the screen protector, and using the belt clip also has a tendency to force the edges of the case to push up parts of the screen protector. I have a Zagg on mine, and it's been pretty good so far, without the holster. The upside to the Beetle Pro is that it doesn't seem to add too much bulk to the device so it still slips into my pants pocket without issue.