I find it hard to believe when you told me you weren't a fanboy of PS3.
Aside from that past discussion, Wii has the lowest failure rate because Nintendo made a big decision when it came down to hardware. They chose what would be more reliable.
Also don't judge a system by its size. The Wii does have MANY capabilities, it's just Nintendo for some reason does not want to shed any light on that. From what I seen when researching homebrew for Wii, it made me realize how much "MANY" was.
More on topic, I really don't care if it has a higher failure rate. You just send it in for repair and problem solved. Plus its sales are doing fine, so most people are buying this still despite its flaw.
Lastly, this is a magazine survey. People who read game magazines tend to be more of a hardcore gamer. So I find it's a bit bias there. That and it's a magazine survey, I don't rely on those. I only trust facts published by the system makers themselves.