Depends on models IMO. Like if you compare LO3xs, I guess you
could say AM/BR does a better job than SLBP.
But if you're saying Citaros, no doubt AMDEP is better than BNDEP.
AM & HG are on-par for Citaros from what I can tell, the rims
on their Citaros are always polished like every once in a few
weeks. BNDEP just run them till chaotah rims. 
Seriously AM and HG on par?
The side of the rims on those citaros from HG are already
black/gret but those from AM are still silver.
Best in terms of rims/citaros should be BB/AR, most still
shiny.