Matt is such an enigma to me. His bio and his attitude and even the way he looks at things make him LOOK smart, yet he seems to be playing right into Rob's hands. I mean sometimes he looks at Rob while Rob is giving his BS like he's hanging on to his every word! I'd love to think Matt is in control of Rob but I can't see it. I think what surprises me the most is how in now two tribal councils, he has said that he doesn't feel threatened. The Deena/Jenna/Heidi/Rob/Alex alliance (before the power struggle of course) kept saying "Matt is next". In fact when Deena decided to vote off Alex she said "If Matt wins immunity, Alex goes", clearly showing that Matt was next on the list.
Here are what I think the most important points about Matt:
1) The way he hangs onto Rob's every word and relays things to Butch seem like he's REALLY playing into Rob's hands. Almost too much. Is this an act or not? There is simply no hard evidence for or against this.
2) He keeps acting and saying that he isn't threatened, yet he is clearly high -if not first- on other people's lists