Why not Garbage? Besides Shirley's possibly having been a cool kid due to her beauty, the rest were certainly outsider kids.
As for exempting Pearl Jam from the bandwagon jumping one hit wonders; I think it's due to their second act longevity you mention. I never saw them as an alt band in the first place. They were a modern rock radio act like Soundgarden and STP. Vedder sounds just like the guy from Blood Sweat and Tears to me.
Agree about Kurt being a power bottom, calling the shots from a passive-aggressive posture. "Oh, my stomach hurts, we have to do this right now" Oh, and his outsider cred is the whole "I fucked a retard and got bullied for it" story.
Mark Arm is good looking in an Iggy Pop way. He had a good rock look. They were just too drunk to fuck and lacked songwriting.