I went through this great debate about getting my suspension too. Skunk2 Pro S are stiff and can be bouncy at times from the hundreds of posts I've read. FF Type 1 for the price are great but only have a 1 year warrenty and most things have an issue after the first year. Tein's are great too for the daily drive but lots of people say that they sag or can sag after a while and they too only have a 1 yr warrenty if I'm correct.
Ground Controls so far have been rated the best coilover, for DD and for auto x. When you pair them up with a great strut that can handle your needs and wants with what you want out of the car, you won't complain.
I bought my GC and matched them up with Tokico Illumina's. Tokico offer a lifetime warranty and Ground Controls are made by Eibach. One of the best company's to have ever made suspensions. They've been around for a looong time and you can do custom spring rates too. Your Skunk2's and Tein's are almost as much in price as the GC/Tokico pair up.