Reckon the main reason for Williams over Hogg is his ability under the high ball. Don't have a clue if it's just my perception, but I tend to have a lot more faith when Williams is underneath a kick. Hogg has the better ability ball in hand, but it might just come down to Gatlands gameplan I guess. When the squad was picked, I was hoping for a back three of Williams, Adams, and Hogg. We haven't seen Williams playing anywhere but full back in the warm up games (I don't think?), but Gatland may have been keeping his powder dry on that one. Reckon Watson might get the nod ahead of one of the above anyway. Some very good options either way.