I think Geo already said it as well as anybody could.
I'm actually shocked that you would even need to ask the question.
I don't have either system, but I knew what the answer was.
For you to have both systems, have to take an internet poll and have to mull over all of the rather obvious advantages and disadvantages to each version, surprises the hell out of me.
All of the reasons you gave for deciding on the 360 version are the same reasons I would have given you to buy that version, but I don't even have either system! I'd be giving you all that "advice" based strictly on internet reviews and what I know about each system.
The fact that you actually had to stop and think and weigh all the good and the bad on each system, really speaks wonders for the Wii, IMO.
Because there wouldn't even be the slightest doubt in my mind. That means the Wii must be a tremendously fun console, so much fun that those of us who haven't played it, can't even begin to comprehend its value and factor it into an intelligent discussion.
I can't imagine that the Wii would be so much fun that it could possibly counter all the reasons why you finally decided to get the 360 version. But it was close for you. It was an internal debate that you wanted some internet opinions on. Wow. Those Wii controllers must be really amazing.