All 3 are new enough that I doubt anyone has ran all 3 yet to compare. I have always responded well to 3,4-Divanil and F95, so Alphamax XT for that. It's great for recomping, but can be used to cut or bulk. Great all around product with the addition of ashwagandha, DHAA, Eurycoma, Ferulic acid, Boron, etc. Should be lots of great reviews on it already.
I was always Anabeta fan, so I'm interested in Test1fy. It probably is great for bulk, since AC always increases my appetite.
Testruction looks solid as well, and Matt (dsade) always puts out top notch products.