I think the three best drivers were on the podium in Austin, and I thought Lewis did an amazing job of catching Vettel. Hamilton really did have some bad luck this year.
I was really surprised how easily he was catching Vettel but couldn't pull away after the pass. If it took him 5 laps longer I bet Seb could have gotten past him as I'm sure Lewis' tires were shot.
Lewis really has had some bad luck. Four retirements and one wreck on the final lap this season, two of which he would have handily won. Even if he only averaged 5th in the other three races he would be sitting on top the drivers standings with 270 and Seb would be in second with 263 (by virtue of moving him to 2 in Singapore and 4 in Abu Dhabi). That is not even mentioning getting sent to the back of the field in Barcelona. It seems the McLaren's have had some unfortunate reliability issues/bad luck this season.