I'm not really interested in Jack's back story, either. I like Claire's quite a bit, actually, especially with her whole dead mother business.
I think it'd be cool if the finale was Naomi instead, just because I don't want to wait until season 4 to see what she did after Sayid saved her. But I guess that wouldn't really fit in with what is going on and Jack's whole hero stuff.
Also, did anyone else notice a very strong similarity between Rousseau and the two Looking Glass girls' clothes? Coincidence? Maybe, maybe not