Hate myself for it, but it's hard to pick against the guy who's playing the KC defense. I'm not sure Hines is still the #1 in Pitts, or that they won't favor the running game, but he's likely to get some decent numbers.
I'd like to pick the

, and Derrick appears to be high on the season since that mid-summer retirement talk. He's clearly the #1 WR, and Joe Flacco appears (from the preseason) to have improved his skills over last year. He's more likely (I think) to go over 100 yards, less likely to score a TD than Ward.
You're probably good either way, but were the choice mine, I'd take Ward. Good luck.