I'm not a fan of Chris Christie at all. I think he's a jerk who epitomizes that lame, east-coast, New Jersey, "screw you" attitude.
But, this bit with Jimmy Fallon is pretty fantastic. What I am a fan of is when people don't take themselves too seriously and are willing to make fun of themselves.
Governor Christie doesn't take himself too seriously during this entire bit. However, it is what happens around the 2:15-mark that is the kicker.