In terms of interesting strategy, I was proud of my bot here:
http://ai-contest.com/visualizer.php?game_id=9002383 . First the head-fake to the top, then a kamikaze dash past center, followed by a just-in-time reinforcement push. To me it is refreshing to see matches that look driven by reckless passion rather than methodical planet-building.
And of course I have been dreaming of this day for a month:
http://ai-contest.com/visualizer.php?game_id=8926489 . Much respect for bocsimacko, this was luck

. The back-to-back chases counter-clockwise around the board are thrilling!