I'm an anti-McDworkin feminist, as you know from the M-Fem threads and elsewhere. (So are Kelley, Michael Hoover, et al.)
The distinction lies in this. Unlike McDworkins, we do not think that representations of sex & sexuality are bad; on the contrary, we would like to improve them so we may enjoy them more. However, we cannot improve them unless we criticize sexism & exproitation in the existing modes of production & consumption of sex & sexuality & their representations, besides working toward a socialist society (which is a necessary but not sufficient condition for the full flowering of sensuality and friendship, I think). Part of the ruthless criticism of everything existing.