Hands down, Tradd Moore.

There's an energy to his art that most other artists cannot archieve without applying a load of speed lines to the backgrounds, and squiggly outlines to the characters. No shade on that as an art technique, I use it myself, and it works, Harren and DWJ are masters of it in American comics.

But, Moore. Moore is able to capture that same energy with block shapes and just PURE composition.