So I applied some RMG to my silver xB today. It produced a very similar result to that of AIO. However, AIO seemed to be a much better cleaner. RMG had a tough time getting some waterspots up. That and the fact AIO is more versatile, I think I'm going to stick with that on lighter colored cars.
If a car is really bad, I'll probably use AIO, then RMG (depending on the color) followed by a sealant and possibly wax.
If a car is really bad, I'll probably use AIO, then RMG (depending on the color) followed by a sealant and possibly wax.