Well, that's an unfortunately snobbish and exclusionary way to look at things.
As far as I'm concerned anyone who thinks a building as complex as a modern condominium tower or the TD Centre can be described as a "box" has a very limited understanding of architecture and just how complex a building is.
I really don't care what the shape of a building is, as long as it looks attractive. Personally I really like the bank towers downtown, as well as the art deco and international style architecture found in Chicago and Manhattan. But it's a box, therefore it's no good according to some people.