Brand got nothing to do with much of anything concerning psus, unless it's Seasonic. I'd not use an Evga Supernova NEX or an Evga 500/600 N/B/W for anything but a boat anchor or possibly a doorstop, even if they were free.
Series is everything. The GQ is very decent, G3 better still and the G2 is the best of the lot. The B1 were miserable, B2 750/850 were impressive, the B3 is a hair above miserable. The BQ only slightly better than the B3.
Minimum recommended psu for a 1060/2060 is 450w. Most recommended is 550w, for no other reason than it's hard to justify the same price for an equitable psu at 450w and 550w and the choices of excellent psus in 550w+ are much greater. Not many really decent 450w psus around. Tons of good 550w. With a decent 650w like the GQ, you have at least 5years left on it, probably more.