I'm speaking from my experience if you have a different opinion post it up but don't go dragging someones opinion through the mud.
Anyway, back to actually helping a guy with a problem.
Actually, you're hurting him (if he was to choose to listen to you, which is doubtful, since he seems to not be clueless) with your "opinion", not helping him. Shopping by fan size in power supplies because you think larger means quieter is just wrong, sorry. Fan size is by no means the deciding factor, ever.
Now, let me help you understand the definition of "opinion". If you have an opinion, it's intangible and unverifiable. If you like brunettes over redheads, fine, that's your opinion.
Proclaiming your ignorant (in)experience with one brand of power supplies as an indicator that large fans make power supplies quiet isn't an "opinion", because you can be proven wrong. Noise is measurable. If you don't want me to correct you, don't say things that are wrong, and stay out of threads that are about things you don't understand.