I use Vallejo for most of my colors. I like the consistency, and I\'m used to them at this point. I have a couple of reaper paints for neutral earth colors, and I like the P3 inks. Because I\'m lazy, I also use GW washes when I\'m in a hurry, but the P3 inks give me the freedom to thin them to my satisfaction.
Whatever you choose, I would go with dropper bottles. The problem with flip lid paints is that they tend to dry very quickly unless you put them on a palette - in which case, you might as well use dropper bottles. It\'s not impossible, and many top painters use flip lids, but it requires more work than I really want to invest in just keeping my tools in good shape.
If you still don\'t know, see if you can find a retailer who is willing to give you some sample bottles. That\'s how I discovered vallejo - an internet retailer I knew sent me a small handful of different color systems to test out, with the understanding that I would buy from him when I fully invested in a particular line.