You'll get a million different answers to those questions.
IMHO;
best head unit: Alpine
best amplifier: SoundStream Reference series (or Human Reign, Tarantula, and DiVinci or perhaps Phoenix Gold Outlaw)
best sub: Phoenix Gold Saphire (I'm sure nobody will agree with this)
best full range speaker: Image Dynamics HCD
best component set: Too many to say
best wiring: Stinger
best soundproofing: Dynamat
best LCD: Depends on if its a stand alone or part of HU.
