Which system is the loudest/quietest?

[AlkamistStar]

This is very a very timely article for me, because my PS3 has been getting very loud after the first 30 mins-1 hour of playing Force Unleashed lately. It's a fairly new system, it's a Phat, but the PS3 from MGS4 bundle last year. Anyone having problems with their PS3 after just 1 year? My 360 is loud if there is the game isn't installed to the hard drive, otherwise it stays quiet all day. The Wii is definitely the quietest however, and from my experiences - doesn't get too hot either.