I like the Rangers suck chant. I go to a decent amount of games (10-15 a year) and it never grows old for me. The main reason that I do it is this...
Ranger fans are ALWAYS at Devils games. Even when we're not playing them. They come with their jersey's, they get drunk, obnoxious, and root for any team but the Devils (first Flyers game we had, a Ranger fan in our section was cheering for the Flyers. The Flyer fans around kept telling him that it was embarassing he was rooting for them). Sometimes they'll come without any colors and make smart ass remarks under their breath. I chant it because I want THEM to be reminded.
Also, people who don't come to games often and hear it, think it's hysterical. They have to practice before they come to a Devils/Rangers game, no?