The PlayStation universe has put together their definitive chart on exclusives coming to the 3 nexy gen consoles…
They have tried to keep all the titles which are rumoured to be non-exclusives (MGS4, FF) off the list but felt the need to include Haze which is rumoured to be a timed exclusive.
Anyway as you can see the Wii wins overall followed by the 360 with the PS3 bringing up the rear.
Which is pretty much how I see the standings in 2010 to be.
For a laugh though follow the link and read through the comments, some people get very worked up about this war.
Link to PS3 vs Xbox 360 vs Wii Exclusives Comparison | PlayStation Universe (PSU)
Last Updated: June 25, 2007