I run the following 10 rounders in every sort of weather from -25* to 100* temps in WY/CO/NE.
Magpull, Stoner, C-products.
To me the best is one that I can drop in snow/mud, creek bottoms, drive over by accident, drop down an 80' ledge & slap in the AR and still rely 100% on & they do that without a missed beat.
Ive done that with all of them so maybe not the most expensive or "top" brand mags, but I know what I can trust in my ARs. Ive never used any others so I cant say on them.