Ok i'm going to buck the trend here, I think "youthinasia" is an excellent album. Of course I think rust in peace and countdown to exctinction are brilliant as well, but everyone has already mentioned them already lol. I also like listening to a lot of the songs off the latest 3 albums as well, "the system has failed", "United Abominations" and "Endgame". Maybe not your "classic" megadeth but i think they're good if you're into your metal music. Also got to agree about Dave, he really is the sort of vocalist you either hate, or can just about tolerate LOL.