I'm going to commit a bit of heresy and admit that I actually don't like most of the MM humans. I find the proportions to be too far off, even for GW, and the poses really static. Even when they look like they are supposed to be swinging weapons, the limbs are stiff and not reflective of actual human motion. I'm more forgving (and fond of) the ogres, dwarfs and hobbits from the same series simply because there are no real life equivalents to compare to.
As far as the humans go, I think that some of the old GW "Fighters" range captured a lot of "character" and uniqueness, but with (marginally) better proportions and sense of movement. But that series was sculpted by larger group of sculptors, too.
Not criticizing the painting here at all, as it's top notch.
There are a few gems (in my opinion) in the MM series, though. In fact, I am still hunting for the middle guy, with the greatsword...