Supergross. This is the porn i avoid at all costs - young women being beat up by dudes and beat off to by more dudes. Conflating sex and violence is pretty not great, and a woman being choked has all the eroticism of someone being hit in the face with a toaster. Before I'm shouted down, know I won't be back spoiling all the great "controlling of whores by the throat." This is just a reality check, tcsfan1 in particular - you are describing sex scenes like crime scenes.
But, so you can't just call me a bad sport, here is the first clip I watched where I realized I was watching a vicious nasty assault. He puts her in a choke hold from behind - he's a real piece of work.
http://www.redtube.com/302246
Enjoy