Ive run badger/ iwata/ and currently a Paasche --- all 3 brands are great, main reason I am using the Paasche now is the VL i can get a large needle and tip combo for it for my powder to liquid ( there is a chemical that mixes with powder coat to turn it to a liquid for spray-able applications--its handy) brands aside you should be more thinking double or single action-- single action is set the pattern and push the button (kind of like on and off) double action is variable --start with thin lines the more you pull the trigger back the wider the pattern gets-- I used to run an iwata double action and bought a "pre-set" handle for it which basically took the double action gun and allowed you to set the end point of the trigger (in a nut shell it made the double action work like a single action ---kind of like 2 guns in one)
any of the 3 are a good choice -- Harder&Steenbeck make some Nice guns to but $$$$ and your not getting parts local lol--I used to buy from www.dixieart.com -they used to have the best prices for guns and parts something to check into --good luck
Might also add, like above--I use tanked air and a regulator not a pulse pump-