It's still interesting to see a president in an informal situation like this. Obama is real good at it--he does good panel. Bush was pretty good too. For him, the more informal, the better. Clinton is probably the best of all of them--he can handle any situation at all, although Carter has always been a great guest too. George HW Bush...not so much.
That's my professional assessment as a former producer. I'm not making any judgement on their policies.
