According to Canes fans down here in NC, Sabres fans are typically the most annoying. I know several season ticket holders and throughout the years they say Buffalo fans are much ruder than anyone else.
Its not that they are rude, its that they actively hate Carolina fans who as a hole fail to appreciate the accomplishments their team stole from the rightful owners. It is difficult to respect such an ungrateful fan base and I remind my relative's neighbors of that every time I go to visit them in Raleigh, half of whom still ask me what sport I'm talking about.
There's only 2 things that bother me at Sabres games: people who talk about non-hockey related topics the entire game and people who stand up to wave at the camera. I'd add drunks to the list but I don't really encounter drunks at FNC like you do at the Ralph.
edit; and I always end up sitting behind a group of Canadians who aren't fans of either team playing that just came down to watch an NHL game, these people always spend the entire game criticizing America, both teams playing, the beer, the food, the atmosphere... I want to grab um by the necks and scream "If everything sucks so much take your ass back to Canadian tire and entertain yourself there!"
other personal thoughts: 100 level seats suck, the view is poor and the fans are the worst; 200 level seats are just a great all around experience, view is brilliant and if you sit in Kelly's section she's smoking hot and quick with the Gin and Tonic refills; 300 level seats are the most fun to sit in and a great value
I also miss the days when the arena was an adults only place. As a 13 year old it was coolest place in the world to be listening to drunks cracking wise and seeing security throw people out. I know its not a great way to watch a hockey game, but as a kid I had a blast.