Well, then you've answered your own question, then.
I always go with my gut when the facts tell a variety of stories, and the answer could go either way.
And your gut is clearly telling you that Gates is not going to give you what you need today. Far be it from us to tell you otherwise, especially given Gates's lack of targets over the past two games.
That said, my advice is Gates over Cook. But no advice is foolproof, obviously....