DSN overall, if you are talking about his latest batch, which are a definite improvement over past models. Lug screws are much better and less likely to strip. For the 111H, case and crystal on the DSN is absolutely better than the standard rep. It's hard to see in pics, but the edges of the case are sharper and more defined, like the gen. The standard reps have too soft and curved edges. On prior editions I would say the reps had better dials, but the latest DSN matches them in fit and finish. The cutouts for the numbers are deeper on the DSN than on previous models. Still not "quite" deep enough, but much, much better. I actually prefer this, as it makes the dial more legible at an angle, since the normal sandwich dial tends to cause numbers to be obscured at an angle. Crown and crown guard are definitely better on the DSN models out of the box.
Don't get me wrong, the standard rep can be modded to be very good indeed, but the DSN model has the advantage in small but noticeable areas that add up to give it a better "feel" in person. It's too bad that pics don't really capture this aspect.