There are some really good ideas on here and I agree with many of them. Boston's debut was brilliant, again way ahead of it's time. I have a hard time with Rush and Maiden, I love both bands, they are just not the same band that became what they are now. Member changes and complete direction changes so I can't go for either of those, however I do like both albums. I would have never though about NWA, but I gotta say (and I can't stand rap), that was hardcore sh*t when it came out and it was cool. Can I put it higher on the list than Zep or GnR? Hell no! Oh yeah, and Sabbath's first, awesome!
To the guy that wondered when GnR and Def Lep became classic rock, as much as I hate to say it, this albums are 20 or more years old. That's classic! Of course by that rational, Zep I should now be an "oldie" not a classic! hahahahaha
Anyway, I was just bored yesterday and wanted to start a thread. Glad this one got some action.