Mushkin is a good name for the most part while the Kingwin brand sounds like an off brand generic or cheap low quality shelf stocker. The best place to see some of the better makes and models is the sticky on supplies if you are looking for one at this time. That covers the type of build as well as the better makes and models there. http://www.computerforum.com/90118-useful-psu-case-guides.html
Mushkin's HP series is pretty bad, the XP series is better, but has never really been a favourite of mine. Kingwin is pretty terrible across the board.
Muskin memory on the other hand was an old time favorite for ocing on older Asus boards. They seemed to have later moved into supplies like Corsair and Zalman has also done. The other brand I certainly agree on about being a garbage low ender!
I looked at Mushkin and simply went in another direction when reviewing supplies for the build here. That simply leads us back to the sticky you did great work on!