^Yeah, District Griffin bugs me a little as well, although I think if there was some variation in the heights (some 10 floor buildings and some 30 floors), and better architecture, it would be more palatable.
I think the perfect spot for Altitude would have been on De Maisonneuve (maybe the east side of de la Montagne). I think Le Crystal would have looked better near there as well, as 25-30 floors is the norm for that part of town. I think a sleek black tower of around 40 floors would have worked well in Altitude's spot. X Condos in Toronto is quite good, IMO. The architect, Peter Clewes, is originally from Montreal.
I completely agree with you on the copy paste quality of some of the buildings along the lakefront in Toronto. The green glass thing works well for Vancouver, but not so much for an older city like Toronto or Montreal.
That said, I like the fact that most of Montreal's proposals are varied in terms of architecture. I think my favourite is the Ilot Overdale. I don't mind a little green glass, but in very small doses only.