It depends on the circumstances. When I'm shopping I'd say "plus size". When I'm chatting with an anonymous, nameless, faceless chatter, I say "fat ch1ck".(sheesh, can't say ch1ck). When I do a search for clothes, or dating sites, I use BBW. When in person, I practically never discuss my size with anyone. No reason, its obvious, why go there?
Theo, I agree that this is a touchy subject with a lot of personal opinions and preferences. But Theo I have to ask, just out of curiosity why in your profile you describe yourself as a BHM, I could have misunderstood your opinion but I thought you didn't approve of those labels. I am not trying to start a fight just wondering where you do stand.
As said elsewhere... yup... I completely agree with you. I also think it's unavoidable that this kind of discussion take place as the ideals of size-acceptance become increasingly disentangled from the fat fetishist scene.