It's widely accepted that the Canadian side of the Falls is much more beautiful. The NY side is also a little more well..hmmm...how do I put it? Rough? Dirty? Like, the city itself. There's really not much goin' on. I live about 1.5hrs, just over that away from the NY side, I do a lot of trade shows, etc up there. I kind of dread having to go up.
Granted I go up in the off season, when it's cold and wet and miserable. But if I were planning a trip with my boyfriend, without a doubt we'd stay on the Canadian side. (Which is sad, I mean, I
want you to keep your dollars in the US, but really, I can't tell you to do that.)
...How about a pitstop in Rochester? We're a good time!!
ETA: I feel kind of bad...the NY side isn't that bad...if you decided to stay in the US, stay at the Casino, easily the best place. But really the Canadian side is better. But the NY side isn't you know, awful...