If you want to dip, then you can only use exposed atomizers, as it is impossible to dip with recessed atomizers. Other than that, if you wanted to know the best atomizer to drip with, you just need to figure out which atomizer you like best and use it for dripping.
What you need to do is figure out where you want the balancing line to be between flavor and vapor production, and that is pretty hard to do without trying them. But many people have tried quite a few different ones, so MAYBE we can help you figure out what you are looking for.