It all depends on what your using for, if for trick and stunt flying maybe Naza with GPS, if for photography and later upgrading to way-points,DataLink then Wookong-M. They are both good in my opinion but each have levels to what you require. Some people say Wookong is overkill for what they need but there are benifits to having it, bit like a camera you buy a good body and buy lenses later, you can always change the lenses at a later date Ie upgrade your bird. Ok that might have been a bit too long LOL..
In short I say Dji are cool.