I can't give a perfect answer to your question but I will say this:
The Canadiens are sacred in this province. Alot of people follow them and many many people come from all over the country (and the US) to come watch the games. The tickets are also very expensive so going to see a game is like taking a vacation. You will see alot of families bringing their kids for the first time of their life (for young chlidren in this province going to see the CH is like going to disneyland). This means the crowd changes alot from one game to another and throughout my life, I've never had an interesting conversation with anyone when it comes to the game (I've been to Bell center/the Forum at least 10 times). Most people are just casual fans getting out of work and having a good time with their husband/wife/associates/bosses/etc. People are friendly though and you can easily start a convo with the person sitting next to you but when it comes to the content, I can't elaborate on that.
Hope this helps,
We have a similar thing here in America. We call them the "Chicago Cubs".
As I said, as long as you don't wear a jersey which isn't a MTL one there should be no problems. I'm not saying everyone is drunk/loud/stupid but it is mostly young people (in their 20s and early 30s). Wearing another teams jersey is risky, and not just in Montreal; I went for a CLB/NYR game in 2012 at the MSG and there were two girls cheering for the jackets with their Nash jerseys on. That was the night people in MSG were chanting 'we dont want him'. The girls then starting to cheer when Nash did good thing and then they starting getting trolled. Some (obviously drunk) guys started chanting ''Ugly betty ugly betty'' until they stopped making remarks (not on an aggressive tone and not DIRECTLY targetting the girls even though..).
People at the Bell center won't loud mouth you but wearing an opposing team's jersey does contain some risk. If you're a casual person that minds his own business and does wear his jersey you might get some weird looks and some playful comments such as ''you REALLY like this team?'' but that's pretty much it. Sorry if I made it sound like the top floor is some wild place to avoid at all costs if youre a CLB fan.
EDIT: I just re-read your post and I completely missed your point. Yes there are alot of people cheering and some drunks (but not over the top drunks, just the ones that cheer alot). This rubbs off to the other people attending the higher areas (it is more contagious as most people attending are young). This results in more noise and I've never been to a game where there wasn't at least 1-2 ''waves''. IMO this makes the game more enjoyable but maybe it is because im still relatively young.
Well I live in Montreal and went to a couple of games and as long as you don't wear Leafs/Bruins jersey you won't get tease at all.
Was going to respond to this in the Optimism thread but out of respect I decided to comment here.
Moving AA to a line with Joey & Umbie doesn't seem like it will do much to light his offense but since he has been pretty invisible for most games I guess it can't hurt. This highlights the real problem (not to cliff jump, just stating the obvious) with this team. We get by the top 3 and we are a bunch of 3rd liners with maybe a border line 2nd guy. Until Horton makes his debut,offense will be tough to come by.
On the left side of your screen tonight over the Tim Horton's sign , you'll see me. I'll be wearing my 3rd jersey with a ha and I'm front row so you cant miss me. Let me know if i get a zoom in from FSN. Should be a fun one! LETS GO JACKETS!