I think what a lot of people forget about Hill in comparison to Brown is Gettleman's philosophy, of big men allowing you to compete. That has applied not only to trench players but also skill positions. I think the team likes the 6'4 speed receiver, vs the 5'11 speed receiver.
This isn't a "I like Hill because he's fast, I'm a Georgia Tech fan post"...But if I look at our trend of no loyalty to non-core players, an obsession with size to a healthy degree, as well as improving team speed. If that 5th spot comes down to those two I think Hill will get the nod.
I liked Philly as a receiver and was glad when he was inserted into the line-up at the least just to change it up because the passing game was so weak; but he's not a Steve Smith caliber athlete, he's thin, not overwhelmingly fast, he was just OUR fastest receiver at the time.