Perfect Debute Albums

Audiofeil's right - This Was was(?) Tull's first LP. I'd add George Thorogood and Queen to my list.

Relax, I'll have a Dogfish Head 90-minute IPA before they stop distribution in my state, and listen to some Commander Cody...

Tatw,

Props on New Radicals, you beat me to it. I'll add Joe Jackson Look Sharp and Marshal Crenshaw (eponymous).

Marty

Pearl Jam - Ten
Black Crowes - Shake Your Money Maker
Keith Richards & The Expensive Winos - Talk Is Cheap ( i know this one is streching it but is a great first record from this band)
The Faces - First Step

I forgot about Pearl Jam's Ten, STP's Core, and Nirvana's Nevermind. Add to my list that hasn't been mentioned yet...

Rage Against The Machine - self titled.

Too bad those guys didn't put out another album or two. No idea why they split.

While I agree that Nirvana's Nevermind is a perfect album, Bleach was their debut and it might count as a perfect debut as well.