With all this "Five Best This" and "Ten Best That" stuff going around the blogosphere, someone is going to do a "Best Buildings" post.
Such list-making mental exercises may be fun or even useful when it comes to movies or 19h century novels or whatever. But the idea of "Best Building" or "Best House" or "Best Gas Station" is just too silly. (That last one might actually be of some interest simply because so few people ever even thinks of gas stations).
"Silly" only because it would involve and imply some set of standards or rules by which to judge. And since very few people who write about buildings in the real world media have any discernible criteria by which to judge -- just go read their work and see if you can tease out the reasons why they are so often aflutter -- they will either have to make those criteria explicit so their list makes sense or simply present a list with text from a random-word generator, only making sure that the words "genius" and "brilliant" are sprinkled throughout.