I just looked over that sticky myself (new here) and it doesn't really tell you what systems are good, and what to stay away from.
Personally, I dont think you can go wrong with using JL audio as your subwoofers; make sure you have a decent amp to give them power tho.
Stay away from MTX subs and Sony subs- as they blow VERY easily- even before "rated" power (Both of these companies overrate their subs and amp, so if you power a Sony sub at "rated" RMS with an amp that puts out rated power, you'll blow it)
Goto Good Guys to hear the JLs, I can guarantee they'll make an impact on you more than any other subs.
As for the rest of the speakers, you can get JL as well; but Crystal and MB Quart make some EXCELLENT higher power speakers. If you don't want to shell out the money for them tho, Alpine will make you very happen.
I dont really mind Rockford Fosgate, but they're really overpriced.