I played a couple RG2020's and was never impressed with the stock pickups (V7 & V8, I believe). They sounded really mushy.
My 2020 has an Air Norton and a Steve's Special. I've also got other
mahogany guitars with a PAF Pro/Tone Zone (3120/CST), and Air Norton/Tone Zone (ART/1880). For neck pickups, I like the Air Norton only slightly more than the PAF Pro. For
bridge pickups (on mahogany) though, I really like the Tone Zone over the Steve's Special.
All in all, the 2020 is a great axe, and if you could get one for around $800US, I'd go for it.
--Brent