I was planning on buying the Muskin 650W based on several recommendations here. But I'm wondering if I should shell out a few extra bucks for the Seasonic 600W since that's the cheapest modular 80 Plus I could find. They're both quad-12v. Mushkin has 20A per 12v while the Seasonic has 18A per 12v. 5v and 3.3v have the same ampage.
So basically my question is, are 80 Plus PSU's actually more stable or are they simply for tree-huggers?