I use all paints, but as I find the best thinner for Tamiya paints is their laquer thinner, that is probably not good for you.
I did want to mention that for brush painting the two best acrylics I have found are Vallejo and Games Workshop. The Games Workshop paints are thicker and more heavily pigmented with good coverage even with one coat even with white. I just thin with a bit of water or Tamiya acrylic thinner and it flows great off the brush. Great for details. Haven't tried airbrushing with it though.