What does everyone like?
And what about this? AK-47 762x39 48rd Thermold Master Molder Military Mag New
Bulgie Circle 10s are nice but pricey. Stay far, far away from the cheap bulgie "bullet" mags. I can't recall the name of the new poly ones that are US made that Gabe pushes on Warriortalk. They sound fine but pricey still.
Unless you're dealing with compliance issues just stick with surplus steel mags... check aimsurplus for reliably good prices.
BS: The smell is the tell.
I like the red Bakelite original soviet mags. They look authentic.
Eastern Combloc are just about all good. Stay steel.
I use steel surplus most of the time, but I haven't had any issues with Tapco plastic ones either.
The bulgy circle 10's are the best mags i have. You can add american floor plates and springs if you are so inclined. I also have some u.s. palm mags and they fare pretty well too. I like the 992r aspect, kinda iffy on the no remove floor plate, but i've never had an issue with them and they're solid as hell.