Near the end of the game when the Pack was backed up near their own endzone, you could hear what sounded like an intercom pumping DEFENSE DEFENSE DEFENSE but I could not hear it like the crowd was chanting it, it just sounded like a record being played real loud. Definitely not like the other California teams, back in the 90's, I think we all could hear the 49ers stadium come to life when the fans would start chanting Defense.
I'll take the Pack as the most cheered road team I have ever seen.
Back in 2009, when the Saints went to Atlanta for their 13th consecutive win, the papers claimed Brees was saying that there was more Saints fans in that stadium than Falcons fans, and that seemed true just watching it on TV cause it was not that loud.
Then in the playoffs last year, the Pack fans took over the Georgia Dome after the first touchdown in the second half. Really not a shock anymore when the Eagles played them there this year and there was a majority of Falcon fans rooting for Michael Vick which was pathetic. That's like if when Favre played us, we all were pulling for him and not our team.
2 Teams I have hardly ever seen cheered on the road is the Redskins and Browns, but let me re-phrase that, since the Browns became a team again in 1999, I have never seen them have fans in other teams stadiums except for Pittsburgh and Cincinnati, and that is a very low number. When I was younger, I remembered seeing Redskins fans at many road games, but over the last decade that has slowly decreased down to barely anything.