The most Interesting would be getting wundertwin Jacen back. Jaina and Jacen have the most wonderful twin antics and I've always enjoyed playing them together. And it would be hilariously awkward because now Jaina remembers everyone -- parents included -- wanting him dead and herself telling them "yeah, and I should be the one to do it."

I would also consider any Young Jedi Knight or Solo-Skywalker family member amazing. Alternatively, Yoda would be the most special crack.

Same for Sakura?