I agree with this completely. Maybe if it was just one it would be fine but I cant stand the way they look on the skyline together especially from certain angles.
I'm also in the camp that really likes 432 Park though.
As someone else pointed out though, office towers and condominiums aren't really comparable. Look at even the new office buildings going up in the city, CIBC Square, 160 Front and even The Well office tower, are all extremely wide at least from some angles. I personally prefer the slender side of CIBC Square but it would look weird if it was that slim all the way the round vs the rectangular shape it has now.
I also really like the mix of wider and thinner towers we're starting to see throughout the city. Massey Tower, as well as harbourfront plaza and ice condos look great because they're among wider more beefy towers. The slenderness also makes them appear taller to the human eye which is something I always appreciate. If we just had skinnier towers like that though I don't think the skyline would look nearly as interesting. In the case of The One, the exterior design perfectly suits the dimensions of the building. Toronto will have a nice, tall and relatively slim tower, but it is nowhere close to what you see in New York. The closest we have to that in Toronto is either the 1200 bay proposal which is only slender from 2 sides or Scotia Plaza which only appears slender from certain angles thanks to an optical illusion.