I’ve never been to a Hurricanes game. I am NO fan of that team, believe me, being a rabid Notre Dame guy. If you want to see some real thuggery, spend five years as I did on the terraces of English football grounds.
I've never been, either, but I have lots of friends who are rabid college football fans. To a person, everyone of them who had been to a Hurricane home game rated it as the most hostile place they had gone. Like an Oakland Raiders game, apparently.
From what I hear, you're right that our bad behavior is nothing compared to the English soccer fans, although at least a couple of Dodger fans must have been taking pointers from the English fans when the beat that Giants fan into a coma. I hope they put these guys in a cell and throw the key away.