I think the answer is pretty clear when it comes to Maine, the Newfoundland Berserkers. A division rival, kicked us out of playoffs last season, denied us a cup the season before, there is just constant fighting between us two. I would say that we have somewhat friendly rivalry with Vancouver, being the two teams that ended up not getting to playoffs the 2 first FHM seasons, although that has died down since they play on the other side of the league and we don't get too many games against them, also counting how differently the teams have been doing ever since the 12 team playoffs. Other than that, I am not really old enough to remember any particular rivalries of ye old Halifax, and who they would beef with, but I am pretty sure we disliked Detroit a lot thanks to Troy Reynolds and that was a fun thing going on for some time back then.