The big winner so far on the PS3 is Killzone 2, trailed closely by Resident Evil 5. On the 360, Resident Evil 5 is currently in the lead, followed by a surprising contender -- UFC 2009: Undisputed. The Wii's current leader is -- who'd have thunk it? -- Wii Fit, followed by Wii Play. For the full five for each platform, check out Gamasutra's writeup.