What a waste of time. A rational debate cannot take place when one of the sides is defending an irrational subject. I don't know why Dennett is even showing up. Throw all the rational arguments at Winston you want - his viewpoint was not arrived at rationally, but through feelings. Even in this short synopsis, they're talking at cross-purposes to each other.
It's something like this:
D: "Due the the high-pressure cell holding over the region, there's a very low chance of rain today."
W: "I felt like having eggs this morning."
D: "That's all well and good, but aren't we here to discuss meteorology?"
W: "Is it hot in here to you?"
D: "I give up."
W: (to audience) "He just can't debate me."