Depends on what you are looking for. I was in Montreal several weeks ago for my bachelor party, so I'm not sure the restaurants and "entertainment" we chose would be of any interest to you, but...
There was a thread with a long description of the diffence between the Sheraton and the 4 Points.
We stayed in the 4 points b/c it was cheap. It was still convienent to everything and clean, comfortable, and I got a great 2 floor suite for something like $60 US a night.