Magpul is the fan favorite. You really wont find any argument against them that holds any water. I have a couple but like DSG Arms Aluminum Mags with Magpul followers. Can't beat them for $9.
You wont catch any other type of mag in any of mine. And when Magpul decides to release their AK mags. Once again, u wont catch another mag in any of mine. I will quickly get rid of all those Tapco AK mags i have.
Magpul!! you can find them for ~$10 if you look. I just ordered 10 more ODG $10 each + shipping. You can load them and leave them loaded indefinitely with the dust covers installed.
MagPul are working out great for me. I started out with 20rnd Gen1s blocked to 5 or 10 rounds but recently bought some MagPul 10rnd magazines that work great too. The only other magazines I have tried are some VietNam Era 20rnders that are as new from my VietNam War memorabilia collection that I never thought I'd ever use.