In terms of abrasiveness?
Klasse AIO is very mild on polishing but cleans well, based upon polishing action, I would stick it 2 POSSIBLY 3. With a PC Klasse AIO's cleaning ability is great, but may make dings and swirls more than what they are, sort of like magnifying them.
Zaino 2/5 and Klasse SG I would place at 0. They offer no cleaning ability.
