I was only speaking of the Badger 155 versus the 105. The 155, being a "siphon" style it is not quite as easy to clean as the "gravity" 105 - the siphon tube can get clogged and it adds a step to cleaning - no such part in the 105.The Badger was a popular name in the 80s, not an expert but the big deal was double action. I used a Binks single action for many years. The Binks was as capable as the Badger at painting and producing the same effects as the double action tool.
At that time there were very few air brushes. I believe those were the only two that could be called pro models. Testors had a plastic deal sold as a Hobby airbrush, close but no cigars.
Can you kindly explain, how a Badger brush is any easier to clean between color changes. Once I became comfortable using an air brush. I found cleaning to be nothing more than filling a paint cup with lacquer thinner, spray until clean.
BTW, did end up with a Badger it was given to me and the cleaning of it seemed a tad more involved. Certainly has more parts to get gummed up, and care must be taken to not bend the needle when cleaning. Not knocking the brush, just saying.
Compressor choice: OP
You want a compressor that has a storage tank. One big enough so you do not have air pulsing as it runs, at the brush when painting.
Just food for thought
Generally I do not have to take my 105 apart to clean it - as you say - just run some cleaner through it.
I have both the 105 and the 155 but I use the 105 most of the time.