PinkieH, I have to disagree.
The PS3 was never designed to be stood vertically, so if you did try and it resulted in it falling. Then who's to blame? You, that's who!
And the Xbox 360 is very stable standing vertically. I had one for about a year, and it didn't fall over once.
What do you mean, the Wii is wireless? All three consoles have wireless controllers!