Open Question: Most trusted computer?

After a recent mobo failure from Ibuypower.com, I am rounding up about 1,500 for my next desktop computer. I was wondering what is the most trust desktop's out there? I'm deciding between alienware and HP. Specifically which has the most trusted motherboards, for that's the only thing I have an issue replacing. I'd appreciate answers with facts, I have a great knowledge of computers, don't worry.