There's no doubt that all players do some diving and all teams do it.
There's also no doubt Montreal as a team is one of the worst offenders, if not the worst.
I mean WOW. Constantly feigning **** and then spending a good 5-10 seconds staring at the refs.
Also Pacioretty is without a doubt the dirtiest player in the league. Crosschecking, slewfooting, headhunting, diving. The full package. The thing that really separates him from the competition though? He complains when other people dare to hit him or do the same dirty **** he does.