I’m not convinced that boxy is the winner. I’m more of a fan of “Pomo KFC,” though I feel it’s more mo than po. But the greatest KFC has to be LA’s version (ugly building contest not withstanding):
The Ultimate KFC by Jeffrey Daniels
It’s even in this Elliott Smith video (1:12 mark) and has 4.5 stars on Yelp–very difficult for a good restaurant to achieve, and this is not a good restaurant. Clearly, within the KFC set this is a giant among men.
These architectures are interesting, but would not be good in tall buildings.