Lol well fortunately for you, I've literally owned every single one of those guns. Well Cricket II instead of Tac but similar minus the bottle. So depends on what your wanting. If you want tons of shots per fill the V3 and Cricket are obviously the top choice there. But there not little guns the V3 is a hefty gun same with Kalibrguns. What I love about the Prophet Compact is it's a lightweight, easy to adjust and tune, and the height of it is a much smaller profile making it an excellent gun to pest with and great truck gun.
For me personally I'd honestly put them in this order for me. Including your Vet and R5M. Oh all mine were .22.
1. Prophet Compact: this gun has quickly risen to my top spot of what I've needed/wanted in a PCP on the farm. Tactical style meaning no wood to get banged up. Big plus to me. But not for everyone.
2. R5M
3. Taipan Veteran Short (barely 3rd as I just really loved my R5M)
4. V3: amazing shooter, cocking not quite as nice as Uragan. Alittle too big for my liking.
5. Cricket II: the cocking felt real clunky to me and just didn't shoulder well on me, shot very well though.