This is a thread I've been following casually but haven't had time to thoroughly digest.
It seems to me that 'sensation' is meant to carry the meaning of something sensed objectively.
I don't like beer. For many, drinking beer stimulates a feeling of pleasure. For me, it's a kind of mild revulsion—a type of pain. But in both cases the objective sensation is the same; my friend and I both sense that the beer is cold, slightly bitter, tasting of hops and alcohol, and so forth.
But the thing is, with brain scans it is possible to notice objectively the experience of pleasure and pain. So I'm not certain where that leaves us.