When it comes down to millimeters, don't forget about crank length - arguably, if not already factored in, shorter riders could benefit from or prefer a shorter crank length, and it buys you dropper stroke at the same time. Thicker pedals isn't really a win-win, but still may be a good compromise for some.
9point8 Fall Line may not be as compact in "stack height" as the OneUp, but they're fairly compact in terms of insertion depth, and offer a dedicated 75mm chassis. While there is a "seal nut" that protrudes from the bottom of the post, there are no moving parts there, so you can potentially be, uh, more aggressive with fitment, or even run without the seal nut*. Other than the 75mm, they are also shimmable for reduced stroke, though it is a bit more involved than some of the others.
*EDIT - I should say, running with no seal nut is not necessarily officially endorsed, but it is possible.