Battle of the hi-tech campuses

See http://www.dailymail.co.uk/sciencetech/article-2331658/Facebooks-hacker-campus-Apples-spaceship-Googles-new-Googleplex-Amazons-Biosphere-battle-hi-tech-offices.html

Facebook has a massive open office (the "largest open office space in the world") with trees on the roof.
Amazon has 3 intersecting biodomes for its new headquarters in Seattle.
Apple has a circular flying saucer.
Google has 9 boomerang-shaped buildings in its Googleplex.

The winner?  I like Amazon's design the best.