DeAngelo gets more. He's the bigger threat as a home run hitter and he's healthier (never thought I'd hear myself say "healthier" and "DeAngelo Williams" in the same sentence).
Last year Stewart got 5, count 'em 5 more carries. Williams YPC was a little better.
Williams is the safer bet to stay healthy and to carry a larger share of the load.
My question: Dymasty League, draft rookies only (keep em as long as you want), who is the best WR after Dez Bryant?