Tamiya more optimized for airbrushing? Yes. Handbrushing? Yes as well. Gunze are fine for hand brushing as well. Never used Mig Ammo though.
I've heard that if you don't allow Tamiya acrylics to fully cure, they will peel off if you paint another layer of it by hand. I've also heard that they dry quicky, sometimes right on the brush before you can paint. AFAIK, Tamiya is alcohol based.
Is Gunze water based?