I would take the box-y-est box that ever boxed if it were clad like this:
It'll never happen though. Go Toronto.
Oh, guys, please, please stop it! You're such teases.There is an opportunity to create a Rockefeller Centre like arrangement here - though it would require a taller north tower than proposed (which would of course create shadowing concerns for NPS). Of course, one can get around that by having some sort of semi-transparent finial (think say Shard in London) that would extend the height without adding floors, but it will cost extra.
What wonderful ideas.