I have a Pixhawk (actually 2 as one gps connection broke), 2 Tarot zyx's (had to replace one GPS at my cost), SuperX and MiniX and the Naza V2. The wiring connections are terrible, IMO on the Pixhawk.
If you just want to fly and have fun without noodling about, Naza or Tarot XZM. If you want autonomous flights and more choices, than go with Pixhawk, but you will work a little harder. For pure flying and filming, the Naza V2 and Tarot zyx require the least amount of effort. The Pixhawk wins hands down on features. So far, I've gotten better flight characteristic out of the Naza v2 and Tarot, but with more time and effort the Pixhawk might get there, just more effort.
The Tarot combo with their gimbal is pretty decent with a go pro. I've never owned the DJI gimbal, but it's probably the best combo with the Naza V2 in terms of video, but I don't know that from 1st hand experience. This assumes you like the gopro.
With all these I fly my DJI Inspire the most. Hate the company, but the Inspire is a joy to fly and video is ok, and you can at least control exposure via shutter and iso. Video isn't as good as my larger x8 w/ naza v2/ gh3/gh4, but it's so easy to just get out and fly. I'm anticipating my 650 quad with 3515's and Tarot or Naza v2, will be a goto MR next year if I can get a light gimbal for the new Black Magic Micro Cam that is still on back order. That flies very smooth with the Tarot FC. Trust factor is the least with the Tarot as it's newer.... So far, I've been ok, just had a flaky GPS module.
I dislike the Gopro for aerials as I want more control over exposure and don't much like the fish-eye.