Well...that aint a battle. That means nothing. Wii is for familys ONLY, thats why it outsold both 360 and ps3. Its not in the competition cuz its not a system for gamers, more like family ppl that play it hour a month.
Only competition is 360 vs ps3. ps3 has better system, but systems dont matter if you got ALMOST NO exclusive games. I beleive its got 2 gGOOD exclusives(halo and them are EXCELLENT). 360s got a shit system but countless exclusives which even non exclusive games are better on 360 cuz more ppl play and XL is better. 360 has been winning since now, ps3 outsold 360 last month i think, cuz of MGS4. In the end 360 will probably win with total sold.
I have to say Wii is better. If you are into graphics than it is not your system of choice, but they have some great games. I personally find FPS control on Wii much better than on a standard controller and almost as good as a mouse/keyboard. They do however have the most 'crappy' games due to the family waggle image that they come across as. If you avoid those titles than they actually do have a great library of games. And virtual console is pure heaven for anyone who grew up on nintendo/sega.
Now now, the Wii has alot of good games, but it isn't really a gamers console, its and entertainment system for when you have friends over, I have more fun on multiplayer games with the Wii than I do with Xbox 360/PS3