Review EVGA SuperNOVA 750 GT Power Supply Review

As far as the EVGA SuperNOVA product group goes, it looks like the G5 line is better than this GT line.
Any idea how either of those compare to the SuperNOVA GA line?
Or why EVGA has so many different types of SuperNOVA?

I've seen the GA line in a number of bundles lately (with GPUs), but haven't found any reviews outside of the basic ones from shopping sites or comments on Reddit/other forums. So it is nice to see so many PSU reviews here that go into so much detail.