Stafford is borderline top 5 on that list.
Your hate is obvious with Kaep, Fitz, Sanchez, Cutler and Orton comments.
Is he clearly better than any of them? Overall I would take Stafford above any of them, but there isn't a huge difference in quality play. They just get you there in different ways. Thats what you get with those middle of the road type players.
The only difference between Cutler and Stafford is one is an unlikable douche and the other is a likable douche.