Stick with the TE's you have. Gonzo should be fine against Wash, you play WR better than the TE. He should be active plenty.
You gotta like V Davis, too. His chemistry with Alex Smith, combined with facing the Titans vulnerable secondary: good things.
I like Nicks, but I think the Giants will try running the ball a ton against San Diego, which is 27th ranked against the run.
Besides, MSW faces a horrible KC pass defense, so you have to take a chance on him, despite his weak effort last week.
My picks for you: