Your question is one of the most frequently asked questions - whats the best suspension? There is no best suspension, if there was racing teams wouldn't spend millions on suspension engineering/set up.
I'm not trying to be mean its just that all the answers you need are in other threads(search function) and in that book. There is no way I can sit here and type 100 pages( or more ) on suspnension & every thing you need to know.
The best option is fully adjustable coilovers or Koni yellow shocks & some H&R, Neuspeed, or Eibach springs.