humbrol vs tamiya vs polly scale

I was reading recently 1 of my back issues of MR, about painting w an air brush with acrylic paint which paint would you use for Bowsers locomotives and BB athearn GP7 for Nde M paint jobs
(sorry i don’t know how to do a poll) and which primer would u use

I personally like Polly Scale , have heard raves about Tamiya paints. The advantage to Polly Scale is the standard railroad colors they produce. Not familiar with Humbrol. But you’ll most likely have to custom mix anyway for N de M.