Hi Have only tried the Tamiya paints one time, and this was on some touch-up work on a model that the spray can didn't get to. And I must say I was a little less that satisfied with the result. This comment is nothing against the paint, I think that it just doesn't work as well for the brush as maybe for air brushes. At least to me.
I've always had real good luck using the Polly S paints with a brush, at least on armor. Don't know how good this would do on aircraft, as they generally are of a smaller scale that AFVs. And they tend to be a little less that forgiving of some painting flaws the modeler might unintentionally leave behind than the AFV.
I do know that when painting AFVs with a brush, this is a very labor intensive process. It takes me around 4 or 5 coats of very thinly applied paint to get all the primier underneath from showing through, unless I want it to show through. And I continually brush all different directions with all different kinds of strokes and motions just to be sure that I don't leave any paint build-up in any recesses or small areas around detail parts, basically till the paint itself is dry, not cured mind you, but just dry enough so the brush doesn't move it any more. Then I let it set a couple hours before repeating this.
As far as planes go, I couldn't say, as I don't model them because I personally think an airbrush would be the only way to do these things. But there is a way to do everything in this hobby, it just takes some experimenting around with different methods and paints till you happen to hit upon just the right combination that works for you.
Good luck and take care, sgirty