In the fall of 2006, the AIA polled 2,448 of its own members (which is
to say, professional architects), who got to name up to 20 of their
favorite works of American architecture. Works receiving six or more
mentions, of which there were 247, were then presented to a sampling
of 1,804 U.S. adults in December 2006-January 2007. There's a little
more to the methodology, of course, but that's the gist.
It looks pretty traditional overall. Ghery shows up at #99 (Walt
Disney Concert Hall), Wright ("America's favorite architect") got #29
(Fallingwater) and #30 (Taliesin).
It looks like MAYBE I wasn't ALL THE WAY off my rocker in the "Is it
possible?" thread, after all.