I may get somes folk's panties in a bunch over this but IMO the Gillette crowd is horrible. During the playoffs or when an Indy or Pitt come in, the decibal level goes up a notch. But most of the time the crowd is totally uninvolved.
When the Pat's score a TD, half the crowd applauds like their at tennis match.
Very little disruption via noise occurs during opposing teams possession.
I've sat in that stadium with friends cheering my vocal chords off and have had these "clappers" look at us like we have three heads.
People blame it on the red seat crowd, but that's about 6000 folks out a 68,000 seat stadium.
I think alot of folks here in NE look at KC, Pitt and Green Bay fans as a bunch of uncultured yahoos and our puritanical history genetically prevents folks from cutting loose and not caring what other people think.
We may consider ourselves the most knowledgeable and dedicated fans but we definitely lack the ability to cut loose and enjoy games as they should be enjoyed.
BTW-Gillette is a much more enclosed design than Arrowhead so the Gillette should be much louder.