I think maybe online she could be top 5. Because her fan is harder to dodge in delay, especially her iAF. Even when you block it she will run in on you.
I've also faced a top Kitana player (probably the top Kitana player in the USA) offline, and the fans are much easier to duck and she doesn't get that jump on you as often. I still think she MIGHT be top 10 though. Like 9, 10, 11, 12.