This is pretty crazy. At the E3, best of show went to the Wii (it's revolutionary!). But, surprisingly, half of the awards went to games on Microsoft's platforms. From the press release:
Last night, the Game Critics Awards announced their Best of E3 2006, where Xbox 360 and Windows titles dominated the winners circle. Additionally, Microsoft Game Studios’ first-party titles came away winners: “Gears of War,” the third-person tactical action/horror game from Epic Games, won Best Console Game and Best Action Game, and “Mass Effect,” the science-fiction action title from BioWare, captured Best Role Playing Game honors.
I'm not sure if there was a Mac showing or not (ok, I promise to stop the Apple hate).