I like Polly Scale/Polly S paints. Last count I had 182 bottles of the stuff, with a few colors being doubled. Goes on nicely, and they don't smell like the Tamiya acrylics. With age, the Tamiya paints seem to 'crystalize' around the top rim of the bottle and also on the cap no matter how hard I've tried to keep those surfaces clean. I don't like the smell of the Tamiya paints one bit.
Lately, I've been getting into the Model Master acrylics as I find that they've got some unique colors that PS don't have. I find that the MM paints are a little too thin for my liking, and that the consistancy from bottle to bottle varies some, but I do use them for both spraying and hand painting. At last count, I had 28 bottles of MM acrylics. The Tamiya count is about 15, and I'm sure that some of those could be tossed by now.
99.99% of my painting is done with PS and MM acrylics.