I missed that the Vortex is fixed power with a reticle. 22X doesn’t help vs scopes with resolving mil dimensions of a small target at distance. What does your Cronus give up to the Leopold?
Here's the review I did a while back that Snowballs mentioned: https://www.canadiangunnutz.com/for...spotting-scope-with-reticle-review-comparison
The Leupold slightly edges the Athlon's glass (which is quite impressive for the price). The 3 scopes I reviewed were all a level above that Bushy Legend T (as I had one previously and was upgrading)
Honestly my biggest beef with the Athlon is that it's made in commie China, didn't realize that when I bought it as it's form factor almost exactly matches the Bushy LMSS (that is made by LOW in Japan). Other than that, I chose it as I found it to be the best compromise in a spotter with a reticle in that price bracket. The Leu[old wasn't a ton more but I also wanted the ability to mount a mini red dot and my LRF which necessitated the addition of a "cage" in the case of the Leupy and added cost again. If I had to do it again (and I will at some point) I'd get the Leupy as it's the standard for a good reason.