If you want the best and are willing to pay for it I would say Planet. Don't have much experience with most of the other major names other than Tippmann and thats not what your looking for.
Make sure you checkout an Axe with the tank you plan to run on it, with the hoseless markers you can't do much to change how it sits other than get to a different tank. I am not a fan of the design but if it works for you rock it. I can speak for the Etek and I love it, I have a first gen one and its been very good to me. Haven't had my hands on to many non mechanical markers other than Eclipse stuff in the last few years so I am a bit out of touch.
Everyone says "Well maybe i'll make a difference",
Thinking they've got plenty of time
But you're squeezed a little tighter everyday
Finished before you can commit a crime