I haven't been to all the rinks I've been to 12 of the 30 and the only one that was louder than us was MTL. From what I've seen on TV Minnesota is rocking, the sharks I would tend to agree with you. Buffalo is loud but I've been to two games one they were loud (it was against us) the other was against Carolina and it was dead. Detroit used to rock, but since they aren't as full as they used to be It doesn't seem they are as loud as they used to be. Chicago was dead when I went, but now with a better team they are probably louder, but I don't know if they are louder than us.
The teams I've been to see are Bruins, Montreal, Toronto, Panthers, Tampa Bay, Chicago, Rangers, New Jersey, LA, Phoenix, Buffalo and Washington.