This was a hell of a game. I won, though it was close, and I was never sure I was doing the right thing. Was I? You tell me!
http://dominion.isotropic.org/gamelog/201202/22/game-20120222-155824-cceb786e.htmlSo I went with a fairly straightforward Governor Golds->Provinces strategy, ignoring Colonies for the most part (I head-checked in the direction of Colonies at one point by remodeling a Province into a Platinum, which ended up clearly hurting me). Got lots of Monuments on the theory that Monuments are undervalued, particularly with KC, but so did he. In his last turn, I made the nerve-wracking decision to remodel a KC into a Province, and then kept his point differential low by remodeling a Monument into a Duchy.