the problem with one-shot/short campaigns is that you can't build the same kind of emotional involvement with your character and the campaign world. that kind of deep connection is truly the most satisfying part of the game.
I am lucky to be in a group with 2 good dm, so we can run a long campaing each and stave off the worst of dm fatigue. we also have supporting players. so we never felt like the players were taking advantage of our dming to outsorce to us the hardest part, and we never had to force others to take a turn.
ultimately, my experience is that the group works better if the people who are good at being dm are dming; but that requires very good group dynamics, and can't be done in all groups