i still like the crowds in 128-130 the best, those are the most die-hard fans. The nicer sections tend to draw yuppie-types who are there to be seen. The Mezz. are the occasional fans and often a lot of people rooting for the opposition. The 300's were pretty good. So far I haven't sat in the 400's.
"Where you stand depends on where you sit." In my neighborhood, sections 128-130 are yuppies. The nicer sections are Romneys and Rockefellers. I like the 300's behind HP.