Generally speaking, one is not clearly better than the other, one has a zillion AF points and (hopefully) intelligent tracking through the frame (and for video), and the other is just quicker to snap into initial focus from far away and also better at quick tracking (as long as it has been told with good settings on what to expect), but they are both useful for different situations.
That might change later of course, but that's where it is now.
And of course in theory, you may need to micro-adjust mirror-based AF, but not DPAF because it is already judged by the sensor's pixels themselves and also the camera's algorithm, that figures out what should be in focus.