I can't see any way you play Warburton and Tipuric at the expense of Stander.
AWJ will be in there for sure. I think Launchbury might be the unlucky one (and that is before considering Gray as well).
Personally I am not a big Nowell fan.
Had Warburton there as I think there's a good chance he'll be captain and Tipuric is the best 7 at the moment. Stander was definitely the hardest one to leave out, he's outstanding.
Don't think AWJ should start to be honest, but I imagine he will do. I'd take all of the four England locks and Gray before him at the moment.
EDIT - Forget that, completely forgot that Warburton is principally a 7.
In that case, Stander in at 6 with Tipuric losing out.