They would, if everyone rode the same way, in the same climate, and on the same roads. There are way too many variables to make apple to apple comparisons. One oil or tranny lube work better for a guy is a dry climate like Az. than it does for a guy in a humid location like Fla. Some guys take off from stop lights like an NHRA hole shot and others baby their rides so much they are bogging the damn thing down.
I have tried Amsoil, Redline, Lucas, and Mobil1, and for me, I get the best results and performance from Royal Purple.