I don't know if these were necessarily my best games, but they're definately the ones I enjoyed a lot.
Game 1757072: Admittedly, my opponent made a mistake on move 30, but it needed extremely precise play to punish him/her. Always check your escape squares when sniping, and count the tempo before the piece can be attacked.
I like my move 36 as well. There were all kinds of possibilities for my opponent. I decided my best course of action was to move the King to the square which would take the knight the most moves to attack and which his bishop couldn't attack.
Game 1854137, which is annotated by myself with some additions from David Tebb here...
Thread 43813
Game 1533195: A mistake from white on move 14 signalled the beginning of the end.
Game 1556210: I managed to completely close down my opponent's king side, temperarily taking a number of his pieces out of the game, and allowing me to concentrate on the queenside.
Despite trying to throw this game around move 21, it's the game where I've beaten the highest rated opponent using a long term classic bishop sac.
Game 1514982
D