@Kei Lau -- That's easy. They're all great airbrushes.
When I paint a model, I still reach for my Badger 155 Anthem. If that doesn't go fine enough, I pick up the Patriot. And if I needed reeely teeensy lines, I'd grab my Sotar, because I like the light feel.
These three just feel good to me, and they are no fuss, no muss, do the job airbrushes.
Don