This one is tough since you are in a 2 QB league. You should almost go with a QB because as it stand now you don't have any however, looking at the 2 choices you listed all the good QB's are probably all ready taken so whether you get a QB now or later I don't think it really matters!
I would pick up another RB since you might as well be strong in some CATS since QB is most likely not the CAT you'll be strong in!
I would rank them:
Marshawn Lynch (after returning)
So......I personally would go Grant/K.Smith with the next pick and either scoop a QB or 2 (not sure on who all the QB's available are?) in the next rounds or another RB if one of these are still available or the next best WR/TE.
Standard H2H 12 Team 1 Pt PPR, Start 1QB, 2RB, 2WR, 1 FLEX (RB/WR/TE), 1TE, 1K, 1 DEF