You are right, he conducts himself well in interviews because he is more extroverted then his brother. He is a friendly very sociable guy. I was really surprised by this when I first met him. as I have mentioned before, he used to buy me beers at the Officer Mess, and everyone there was also a beneficiary of his generousity and friendliness. He really is likable. BUT THAT DOES NOT MAKE HIM SMARTER. When I met the brother, my impression was that he was very deliberate and would mull the answer in his head first before, replying to you. Not too spontaneous. And certainly not as gregarious as his younger brother. But he did seem to be the thinker among the 2. Anyway, that is just my opinion. I am not their close friend or anything like this.