Don't know what you like paint wise, but here is my two cents. First, I don't care for super spec. I think PPG Speedhide is as good for less money. Pure performance and Timeless are both good products. Never heard of Speedwall and don't even see it on thier site. Have used the Speedhide primer (last week) and it works well. Cannot compare to BM because have not used thier primers.