This is not for any particular system; I'm wondering in general if one of these PSUs is of a higher quality. Push considerations like aesthetics and cables aside for now. I welcome comments on the difference in efficiency and noise, but again, my main interest is to compare the durability, longevity, build quality, reliability, and quality of the power these PSUs put out. Corsair 750TX PC Power and Cooling S75CF "Silencer" Silverstone OP750 All three are listed with 60a on a single 12v rail. Feel free to compare these to any other single-rail 750w PSU as well. I'm researching more online as I watch this thread and will add anything of interest I find.