lol yeah Gaga does come off borderline crazy, but it's all just a crazy attention-getting act. Overall she's still very talented (man can she sing and play piano!), and she has a good message. My girlfriend dragged me along to two recent Gaga shows...Queen E? Orpheum? GM place? I honestly can't remember. I don't have much to compare to though because I don't go to many pop concerts. I guess I could count La Roux at the Commodore but I don't like her that much to begin with... too shrill-sounding. :/ Haha everyone knows about that debacle that Britney called a 'show' though.
I usually stick to the smaller bands in smaller venues, partly because I hate paying $80+ for a ticket, and partly because that's just the kind of music I listen to.
You're so lucky you got to see MJ! It's really sad that a lot of people didn't really appreciate him until he passed way. :'(