It would depend on what the problem actually is. My wii crashes once in a while on Goldeneye, probably due to the cpu being overworked/overheated.
You'd have to contact nintendo direct for an answer.
Also, don't forget that playstation got hacked and it's worldwide online network was down for over 3 weeks!! I guess no system is safe from problems.
Finally, loyalty is becoming a thing of the past with consoles. Each has strengths, depends on what you can afford and what games you prefere.
Hope that helped