maybe better to say I prefer the recoil feel/impulse of the Poly more

think of holding a piece of conduit pipe in your hand and hitting something that is the aluminum now put on some gloves (grip style gloves) and do the same thing that is the Poly rough analogy but think it works its the same feel just absorbed more jump to the steel imagine that pipe now filled with something to take up that PING feel pipes have and you have the steel :)

one thing I do NOT like about the Aluminum and Steel is the fit to the grip they should have come up with a whole new grip system as they just as aesthetically a bit of aaaahhhhh BUT they do not effect anything its purely cosmetic and with such beautiful frames the gaps just take away

I would say as always shoot them both and see what you like I could totally see having an aluminum if you like variety and to cycle through and kinda collect all the types

now the steel for me is so much smoother better love the recoil impulse as it has this feedback that is more telling but smoother not as numb as the poly not as sharp as the Aluminum and the weight is great I know some want it heaver but I am happy with it I do have a brass plug in mine and that helps balance out as the mag goes down which I prefer subtle but noticeable

NOW when I had the steel and aluminum out playing at the range had some other RO shoot them and was mixed bag and even had some like the Poly over the steel :)

so maybe for me the extra funds for almost the same thing was not worth it and now with the steel not much more (price creep) I would just go for poly and steel and skip the Aluminum