I would have to say keep her as she is, therefore, we lose none of our coasters here in the USA, and the people that live near the other parks won't get sad a coaster they like is leaving.
Guys who are voting for TTD, well, have you ever heard of the girl who sat in a tree she didn't want to be cut down until they decided to let it stay where it was? Let me tell you, if that ride was ever to be moved, I would be sitting on that thing until they told me it would be going nowhere.
It would be nice, though if KK was removed and brought to Europe to make TTD the tallest and fastest in the USA again, but it still won't change the quality of the ride it actually is, which is why I'm saying leave Rita to be at AT.