I would have to go with the AAA. I've been really close to pushing the 'buy' button on the EVOL with 15" barrel (especially since they are currently discounted at AoA for the July 4th weekend), but I just haven't been able to when I logically sit down and argue that my Prophet can pretty much do everything that EVOL can. But that Paradigm with its longer barrel and wood stock sure would be tempting. I really like the engineering which has gone into the AAA guns, and they fact that they simply do one thing well without fiddling or fussing with adjustments.
This was actually the reason I sold my Delta Wolf - It gives so much adjustability to shooters who need it. But for my shooting I don't, so it was overly complicated for me. I get enough electronic adjustability out of my Red Wolf's.
The M3 is certainly a fine gun, and I like my Compact model. But I don't see a lot of benefit (once again, for my shooting) which it would give me over my MkII Sniper.
Leshiy 2 - just seems like too many issues with those guns (I know, issues will be overblown on web forums as those with problems will be posting, while those with no problems will be out shooting instead of posting). But the weakness of the US support of Edguns is also worrisome. I have a Leshiy Classic which I do enjoy - but it is a different beast altogether regarding complexity, adjustment, service needs.
The Caiman is an interesting gun - I almost bought its longer brother Caiman X a while back when one came up on the used market. Airmaks guns are pretty innovative, well built and nicely priced in my experience (Katrans). But the Caiman (which I would guess handles much like the Lelya 2.0 which I once owned) would be truly at home for walk & stalk use, especially in brush or dense forest. And I have learned that I really can't shoot off-hand worth a sh!te any more!
Now, do I go off and buy a Paradigm while AoA has stock and they are on sale...
P.S.: I didn't really take into account the caliber of the specific guns listed. Just at the gun itself, as you can generally find them in any caliber you want/need.