I think this question has to be taken with a lot of publicity taken into account.
In 2002, there was an aura about Axl and his new band. The comeback if you might say. And for his poor vocal performance and strange looking lineup, I think it for me was the worst gig (not technically, but publicity wise).
Although the 2011 concert is up there (Axl was awful, and a few fuck ups by the band too) it doesn't reach the height of the VMA's purely because 10 years on, less people give a shit.
It's weird but if you ignore 2002 vocals/band (as great as they were, the general public weren't going to get behind that band tbf) and think if you had Axl/2006 how different things could have been. Especially considering after that you got 2010 vocals. I mean, nobody would ever consider newgnr>>>oldgnr but people might have stood up and taken notice
"I know someday you'll have a beautiful life, I know you'll be a sun
In somebody else's sky, but why, why, why can't it be, why can't it be mine?" </center>