What makes Mark Giuliana and Nate Wood stand out as drummers?

Not necessarily in comparison to each other — but in general. What defines their uniqueness in the drumming world? What makes their playing recognizable, influential, or just different?

Are there any specific elements — grooves, phrasing, touch, ideas — that clearly say “this is Nate” or “this is Mark”?

Both are often mentioned as modern greats, but what exactly are the musical traits that set them apart?

Would love to hear people’s thoughts, especially from those who’ve spent time analyzing their playing or have seen them live.