For 1911's, I prefer Wilson Combat 8rd (I see a trend here
) and MetalForm 7rd mags. I've used Promag and Mec-Gar mags for my CZ's with no problems and they have worked well in other pistols I used to own but are now long gone from my collection .. USA and TripleK's are only good for chunking in the trash... They are not worth the packages they come in IMO. The other mags listed I have no experience with, so won't comment on them.
Rick