why choose one or the other.. go with both... I have a Badger universal 360 and its great.. It can be used as a siphon feed or a gravity feed.. by turning the feed section around.. it moves from top gravity feed to bottom siphon feed in 2 seconds.. the 360 is also basicly the same as the Badger 155 but the 155 is gravity feed only.
I use the gravity feed to do touch up work or to paint small items that don't require a lot of paint..and this airbrush will work with just a few drops if need be.. for larger jobs i use it as a siphon feed.. I use model master bottles and have a converted siphon cup for it.
clean up isn't that bad either..
1. just unscrew the cap off the bottle, carefully Backblow the extra paint back into the bottle.. put a cap on your full bottle.. (i thin my MM enamals in the bottles and use that way i don't have to clean the darn bottle)
2. wipe off excess paint from the siphon inner lid and siphon.. hold in some thinner and blow thinner through the brush and siphon cap..
3. remove siphon cap clean siphon with thinner and micro brushs. dry with paper towel.
4. turn paint cup to gravity feed mode.. fill with thinner run through airbrush again.. clean cup..
5. Take needle out of brush. remove tip assembly clean needle and tip asembly with micro brushs..
6. Clean airbrush body with q-tips and microbrushs with thinner untill clean.
7. Re-assemble and put away..
takes me about 5 tom 10 minutes to clean and It is time well spent to keep your airbrush in tip top form.
also have a badger 175 cresendo and clean up is basicly the same minus step 4.. the 175 is great for general use and large area coverages..