Well, someone commented, if a tad derisively, so I'll continue. Perhaps I'll even soon defend my favorites against Alex's wantonly impolite criticism ("And LFD has the depth I would expect from a TC mod for UT2004 or HL2 that someone coded up in 8 hours"? There's no way that's not inflammatory).
MOST INNOVATIVE USE OF THE MEDIUM - Chrono Trigger
For a game that's over twelve years old and is highly respected across the gaming world, I'm surprised that I had missed this one until now. I played it on the DS over the past week or so, and am currently playing my New Game + to collect all the endings. What really surprised me about this game is its repeated peculiar subversions of JRPG mechanics - especially during scenes of story. The game from the very beginning hints at non-linearity (although this game doesn't have too much of it) by allowing you to, for a while, completely ignore the fair you are supposed to attend in favor of taking a cross-continental walk, and even entering your first combats. Later, I was surprised by the amount of freedom Chrono Trigger gives you in what would in other games be straight-up cutscene. It's hard to describe how even the most moderate amount of interactivity amplifies the emotional impact of the scenes in which it occurs. If I ever make a game, I'll certainly employ techniques from this game which, mysteriously, haven't really been seen since.
BEST SMALL GAME - Dyson (From Deadrock-game.com)
Found via Rock, Paper, Shotgun, this tiny game is a simple, beautiful, and peaceful short about solar domination. While its end-game is dull, the beautiful sloth of inter-asteroid spore travel made me quite happy.
KICKASS - Audiosurf
Another February game. Cheap, fun, and fairly synesthetic, I agree with pretty much everything those fine folks at RPS had to say about it in their year's recap. They're a bit better at his "blogging" thing than I am.
More later, possibly even today.