The little engine that could
According to a SquareTrade report on game console reliability, the
humble Wii is about as reliable as a Swiss clock, a Japanese car or an
American shotgun.
Basically, Nintendo's white toy is 9 times more reliable than Xbox 360,
4 times more than PS3. Over two years of use, just 2.7 percent of Wii
users reported a failure. One in ten Playstation 3 users also saw their
pricey toy expire, while Xbox 360 owners reported failures in 23.7
percent of all consoles sold.
The Wii's Achilles heel are its controllers and power supply system.
The Xbox 360 and PS3 commonly face issues related to disc read errors
and some output problems.
It must be noted that the Wii is the least used of the three consoles
in the survey. Xbox 360 users spend the most time behind their
consoles, and PS3 users are not far behind. The average Wii user,
however, spends half as much time playing as 360 or PS3 users.
More
here. (.pdf)