In have tried and used Wilson dies, RCBS in both Small Base and "regular", Lyman 310 dies, Lee Collet Sizing Dies. My conclusions were that the best groups, in my rifle, were from RCBS dies in either Small Base or "regular" it made no difference. Next were the Lee Collet Sizing Dies, and then the Wilson followed by the Lyman 310.
I have some Redding "regular" but am yet to try them. I bought them as I want to fit a carbide sizer button into them and I know that whilst I can, in theory, get this (made by another) for my RCBS getting the Redding carbide sizer button is easier.
So my conclusions were that the best groups were RCBS. Small Base or "regular"...no difference.