If I could only choose one, it would probably be Pictures of You, followed closely by Superman Tonight. I like Because We Can, too, because it seems to continue the Tommy and Gina story even though I don't know that anyone has said specifically that it does.
But that could all change tomorrow. It's hard to miss me with Bon Jovi - I like 'em all! So tomorrow it might be Brokenpromise Land or LTOR.