I just eradicated a tank covered in them with peppermints. The secret to guaranteed success with peppermints is to not feed anything, though. Tough on a system with fish (this one is just for this purpose, so no fishes). They wont leave any anemone (including nice rock anemones you really liked, etc.) in the search of food. I tend to overload the tank with them when I go into eradication mode.
Berghia verruciccornis nudis only target Aips, and they work great, too. They won't do it fast, but you'll eventually notice that you have fewer and fewer Aips until they all appear to disappear. THen the nudis die and a straggle Aip reseeds the tank. That'd be the case with anything short of drying the rock out, though, I think.