What is best?

[Vink]

I have to do something with my One Verify avs pages because they're stopping their program. Some of my sites are listed in the dmoz. Some have a little page rank.
1) I could delete them and have them redirect to the root domain.
2) I could put up a full page add.
3) I could delete the sign up page and link the index page to the sex key or pro adult script.
4) Do something else.
Right now I feel like just deleting them. I got enough work. I don't want to screw up the root domains PR though, if that's even a question.
What would you do?