Think I am going to just concentrate on Tinder for now. It is so much better than OKC and POF in so many ways. The pre selection is done for you, any girl you chat to is already interested and you can get a number and a date in so much less effort than online dating.
I also think girls that are on OKC and POF are a bit more damaged than Tinder. Tinder is a lot more socially acceptable so you get a wider selection of normal girls, while on dating sites they are a bit more crazy.