I'll give it a shot, sure. But to be clear, while I do support the concept of poise; I don't think it's ever coming back and it's time to let it go. also I think it would break certain aspects of PvE
You have a guy with a heavy weapon (P1) and a guy with a fast one (P2).
Scenario 1) P1 swings first.
Scenario 2) P2 swings first.
Scenario 3) P1 and P2 swing at the same time/trade hits.
Scenario 1)
Scenario 2)
Scenario 3)
Now this post fails to consider a lot of things like balancing, unique weapons, or a lot of other scenarios, and that's because I'm too lazy for that so this is a very basic list.
But y'know, better than nothing.