One question to ask is; what will you be building/painting? For larger models and not doing a lot of fine detail, I recommend the Patriot from Badger. Easy to clean and the large cup holds a lot of paint and the needle allows for a large area and you can get in close too.
If you are going to be doing some fine work, then the Krome from Badger is awesome. Once you realize how smooth the action is, you won't want to go back to the Patriot.
It is a matter of personal choice as others have said. A lot like which is the best pickup truck to buy? If you stay with the big names; H&S, Iwata, Paasche, Badger, you won't go wrong with what your budget is. It is a tool that you will use for years, so buy up to what you can afford. You will buy more than one trust me:) I have three that are always ready.
John