All my old Okay/Surefire mags are great but as mentioned, they’re no longer made.
The last few years I’ve read a lot of complaints with Surefires, but never bought any of the last gen.
D&H get my vote for best bang for the buck, they’re usually the cheapest and work great.
All my Brownells are the straight GI 20s but if their 30s are as good, that would get my vote for BEST aluminum mag.
I don’t run any CPD/Duramag or ASCs in 5.56 but have a ton of em in other calibers for ARs. Between the two I prefer Duramags but for 5.56 there’s better/cheaper options. If you want mags in different colors, buy some Rustoleum...
I gotta add, I prefer my Lancers to my aluminum mags, and if you gotta have all metal, the steel bodied E-Landers or the el cheapo steel SKH mags are better, and often as cheap. I’ve even got a few of those weird Bulgarian all steel slab sided AR 5.56 mags that use the ‘AK style’ followers. Those are great too.