Pro's P-21 Swirl Eliminator and Polish. I use it with my rotary and it is great. Is easy to buff off and it leaves a nice, clear finish. It also will remove buffer swirls if you used a heavier cutting product before.
If you want more cutting action, then I've been using Pro's P-11 Creamy Cutter. It works great at taking out cobweb swirls.
Pro's P-40 DUZ-all is great for cleaning off oxidation but it doesn't have the swirl and scratch cutting action that P-11 Creamy Cutter does. DUZ-all on the bottle though says it is made for cleaning off oxidation, water spots, fallout, and other contaminents. It does do a nice job at oxidation removal. My dist said switch to Pro's Acid Rain Remover though when I run out of DUZ-all. I still have 1/2 a gal of DUZ-all left and I hardly ever use it. I mainly use P-11 now.
I've tried some other new product they got. I can't remember the name and it isn't on their webpage. It has the same type of abrasive P-11 does but it isn't as abrasive. I tried it out and it could remove light cobweb swirls and would come out to a swirl free, crystal clear finish. It didn't have the power to easily take out scratches but it did a good job at cobweb swirls and coming to a clean finish.
EDIT: Just found it. P-26 Clear-Cut