Don't underestimate the annoyance factor from the slow(er) setup time and suitcase you have to deal with using phantoms.
Mavic all the way IMO.

Beware the Phantom 3 now being sold has dumbed down radio and range is much less than the 4 (or Mavic)
It's still adequate but you will hit the limits. You won't on the Mavic, it will go as far as the battery allows.