Go to Barcamp for the food!  :)
Sorry to those who run the survey, but I have to be frank: it was poorly done and skewed the results.
Mistake #1: having the T-shirt with logos on the back for only the first design and not the others.  Yes, a note was added after the first votes were in.  (a) it's too late for the early votes.  (b) people dont' read every word, they skim and easily skipped that.
Mistake #2: Anyone familiar with politics and elections knows what happens when you take a party and create a similar party: it splits the vote.  This is what happened here.  The first T-shirt got 31 votes, the 2nd 21 and the 3rd 14 votes.  I think either the 2nd or 3rd is better than the 1st.  And I'm pretty sure that others would agree.  If you add up 21 + 14 you get 35, a clear win for the more unique design.
I'm willing to bet if you a run-of election with only 2 choices (remove the 3rd) with the logos in the back, you would not have a puritan T win.  The Green Curve would win.
Welcome to game theory folks.
Sent from my iPhone (nah, not really)