Raffl will stay over Read, bigger, faster, tougher at this point in their careers - Read is pretty much cooked, which is normal for guys with decent but not great talent as they approach 30, it's not so much they fall off the cliff, they just decline enough that they're no longer starter quality.
Raffl is underrated by fans because he's not a slick finisher, but he does everything else, and you can't have three figure skaters on a line, someone has to go into corners, attack the net and get back on defense. If you can find that guy with a great shot, wonderful, otherwise a guy like Raffl >> a guy like Gagner.