My prediction is that Jen will nominate Nick.
First, I think he is the only one who can beat ED and I think he is the one that Jen really wants to send packing.
Second, if Nick is nominated and actually does leave, I think Jen will think she showed him AND she knows that she wont have to watch him fawn all over Dani.
That is my opinion....when I saw how nasty Dick was to Jen, I already didnt like him but I cant see her wanting to put up anyone against Dick EXCEPT for the strongest one.