right now i'm trying out the zaino line-up, however I use ALOT of cleaners/dressings/shampoos from a local supplier (Majestic Solutions). Other than those I use some CG stuff. CG Citrus wash is great!
CG probably the most because you cant really beat the prices and size and quailtiy. I just ordered the whole optimum polishing line though from the compounds to the polish to the poliseal and the ONR.
I Love Duragloss, It Gives A Awesome Shine Plus The Guys In The Shop Are So Easy To Deal With, They Always Have Time To Talk With You And Answer Your Questions. There Car Wash Is Awesome And So Are There Polishes.They Work And Are Some Of The Best Around. There Swirl Mark Remover Is One That Gives A Great Shine And I Love To Top It Off With There TPP. Product # 105.
Mostly Meguiar's, because they have Hyper Dressing, Last Touch (clay lube), and Wheel Brightener (plus their car washes/other misc. stuff), which get used on pretty much every detail.
Optimum probably next, I use a lot of their stuff. I have a totally mixed bag of polishes/LSP, etc.