Cricket (@bikequeen), My experience with AK Real Colors is that they act just like Tamiya paint. In fact I have been able to mix the two together. The Extreme metal colors have good coverage, but I believe they are enamel based (don't quote me on that). I used them for my Constellation build but found that they were still subject to pulling up with tape if care is not taken. I did find that I could not thin them with Mr Hobby Leveling Thinner, had to use AK's Extreme Thinner. They do take much longer to dry, more than 24 hours in my experience, but good paints otherwise and many useful metallic colors.
I am currently experimenting with Vallejo Model Air for air brushing, but still having a bit of difficulty with the technique. Vallejo's biggest advantage is it is readily available and they have a huge range of colors. As Pedro (@holzhaer) mentioned, AK Real Colors are getting more difficult to buy, mainly because of supply in the US I believe, but still available from SprueBrothers, HobbyLinc, Mega Hobby, KitLinx (sometimes).
Of course, if you don't mind the smell, there's MRP, and I think SMS (not sure if that is lacquer based).