I'm glad the Foster tower was chosen as it's my favorite of the bunch.
I actually like a lot of the Roger's design such as the colored steel and the way those outdoor open areas are stacked. They just needed to change the tones in the colors a little and cut down those hideous looking trees.
The Hadid design makes me want to cringe. Of course it is supposed to look futuristic, but I think in real life, that facade would look cheap and very outdated, Kaden tower style.
The Koolhas tower looks sharp to me and I would be happy if they chose that one too and while it would be nice for Park Ave to have some new blood design-wise, it would probably fit in better elsewhere in the city.
Now the Foster tower is perfect for Park Avenue. I always think that the glory days of Park Avenue were the late 1950s to the 1960s when towers like the Seagram and Lever House were built to stand alongside classics like the Waldorf Astoria, Helmseley building and GE building amongst others. This era is kind of when New York came into its own and began dominating modern fashion, culture and art yet did it with a clean style that high modernism exuded. While that era has gone, it seems to have never gone out of style at least
This tower does a lot to remind us of that era while also noting the present with it's white colors, lucent glass and tall striking fins.