Skidmore Owings & Merrill LLP

The iconic post-​WWII, modern American architecture firm.
Thumbs up: Lever House, John Hancock building
Thumbs down: Freedom Tower, brutalism, almost everything that was designed in the 80s
Waiting to check out: Trump Chicago, the Peninsula Tokyo, Burj Dubai
SOM, will you ever be the quintessential architectural firm again?

I appreciate the John Hancock building, the Lever House, and the Inland Steel Building as architectural classics. I think that the Trump Plaza and the Burj Dubai will turn out well, as well as the Calatrava-​designed Chicago Spire.
But I am of the opinion that modernist architecture should never have been applied to giant skyscrapers. So many great buildings were demolished to put up huge, lifeless, cold boxes. SOM was instrumental in this. Modernism worked well in Europe (especially in Germany), where it could thrive along side ancient buildings.
In America, the land of unlimited commerce and unlimited heights on buildings, some of the ugliest buildings ever designed killed any level of «human scale», and deadened many streets to pedestrians.
Hopefully, a new generation of architecture (like the ones I listed above) will reclaim human scale, even with 2000+ foot towers. Only time will tell.