Image from Mindmeters

Ma's design was chosen from among six finalists, all of them architects with international reputations.

From CanadianArchitect.com:

While the competition was fierce, Mr. Ma's submission topped the list among three groups asked to judge the six finalists, says Sam Crignano, principal in Cityzen Group [the developer of the project].

"It was first choice among our nine-member international expert judging panel. It was the favourite for the 6,000 people who cast ballots at an exhibit in Mississauga's Square One during the past month and it was number one among brokers and agents invited to comment on which design they found best suited to buyers' needs," he says.