I would disagree about Tory Lane, I think her asshole has held up well. While I know she is not popular on here but Shy Love's asshole has held up very well too. Same for Georgia Peach she has done a massive amount of anal,some of the scenes I don't know how she survived, her asshole has held up well.
As for torn up assholes Trina Michael's didn't fair too well. Same for Ryan Conner, her asshole started out lookig good but by the time she retired it was showing lots of wear and tear.