Put me down with Sexhoundog; I've been with over thirty women in my lifetime, all shapes and sizes. And the best all-around sex I've ever had was with just two of them; Bunny and an ex-girlfriend, both of whom are BBWs (yeah, there were a few runners-up on the list, but most of them were BBWs, too...

.
Granted, I've always had a thing for plump women; there's just something about the curves that really do it for me. But if you give me a choice between a BBW and some Barbie clone, I'll take the BBW every time. For one thing, the BBW is far more likely to be a better playmate than Ms. "HWP".
To me, "attractive" is an attitude, as has been pointed out already. I've seen women that, if looked at dispassionately and by society's prevailing standards of beauty, would be considered good looking. But I wouldn't touch 'em with a ten-foot pole, because of their attitude and personality. (The eyes are the window to the soul and will tell all once you know how to look; never forget that.)
On the other hand, I've known BBWs, women that some would not look at twice because of their size, that to me, were incredibly sexy and attractive, and I'd jump through a lot of hoops to worship at the altar of their loveliness...
And one of the reasons they were so desirable was because they by God knew they were, and it showed.
And that says it all...
-- Bear