Those 3 rims are so close to being the same it's a tough call. Since no real aero advantage doesn't start till the rim is 40mm deep or more, there is no real aero advantage to either.
The DT Swiss is built to handle disk brakes which means it will be a very strong wheel which also means it's the heaviest of the three, but they do claim that theirs is the easiest to seat the bead then other rims, whether this is true or not I have no idea. On the surface due to all the slick marketing information they provided DT seems to be the best, but there is that slight weight disadvantage of 40 grams each wheel.
The other two rims are so close it would mount to nick picky very small differences that wouldn't mean anything in the rear world. Looks would be the only real factor!
I know you didn't ask about hubs but Chris King hubs are overpriced and they don't offer anything significant that would justify the price. I think White Industries make just as good of a hub if not better. White hubs do not use proprietary bearings like Chis does, White uses larger bearings for better weight distribution, White hubs have less drag than Chris, White doesn't require a proprietary tool to work on it like Chris does that cost $180, White uses titanium driver body instead of aluminum like Chris, Chris makes a lot of noise.
See this:
View: https://www.youtube.com/watch?v=z018IeCZO24
View: https://www.youtube.com/watch?v=oKbKfxu5_oQ