koni yellows are prolly top choice for most people. But there are also some peeps that bought yellows, and were dissapointed, thinking they would be better...
I personally have Koni Reds, which have been on the car for about 6 months... i like them. I would put KYB agx's and reds about equal, but u do get adjustability with the agx's.
Blistein HD's are also suppose to be really good.