If Ward moves up to 175 and beats Dawson, depending on how Pacquiao looks against Bradley, I think you could argue as high as number two. For Dawson, he might be a top five guy. Then again, it all depends on the manner of victory, the weight the fight is fought at, and how the other top ten guys perform in their next fights should they occur in between a Dawson-Ward matchup. Can't really give you a finite answer.
If Ward moves up and beats Dawson convincingly. I would put him at number three behind only Pac and Floyd.