Think I was at that Etihad gig. 22-20s and Coral supported if I'm not mistaken? Potentially Doves? (was a long day ha!) It was filmed and shown late night on Ch4, you can see me pogoing about to My Generation at the end
Comments about the fans behaviour would put me off too - in two minds about NGHFB for that very reason although I'll probably go on my own if at all.
My 90s/Britpop tastes have definitely evolved over the years. Very Oasis/OCS heavy at the time but would put Suede, Blur and Pulp far above those two now. Radiohead far and away too although they don't tend to be mentioned as part of that scene.