I think Samantha and Christine have a good chance as far as this week goes of being the final two. On the interviews I saw with him before the show started he said the one he picked was not an early favourite. He said he was surprised at how she grew on him as the show progressed. He also said that usually he decides right away whether he likes a girl or not and in this case, as he got to know her better, he found himself liking her more and more. So we'll have to watch for this progression.
I wonder what the twist with his parents not liking one of the girls is all about? Is that supposed to be real or is it staged to get him all messed up? Why would they present it as a "twist" if its for real?