SCT versus random orbital sander?

I'm just starting to think about stripping the paint from my car now that the new quarters are nearly finished. The plan is to use an angle grinder with a 3M clean and strip XT pad. It seems to remove paint pretty quick. I also have a 7 inch rotary unit with 40 grit discs and a DA sander. I haven't tried the rotary one out yet. Hopefully between these 3 the job will be quick without damaging anything. I'm doubtful that the drum type will do a better job but who knows. I would think the random orbital would be the least aggressive and slowest at stripping.