I'd have to mirror what others have said...
Metallica - Metallica
Pearl Jam - Ten
Alice in Chains - SAP
G&R - Illusion 1+2
Nirvana - Nevermind
Smashing Pumpkins - Siamese Dream
Stone Temple Pilots - first CD I ever owned
All have sentimental meanings behind why I chose them, but I still to this day can't listen to certain tracks do to the emotional pain they're linked to.