He seemed like a down to earth guy. His biggest blunder was probably giving his permission to have LHO exhumed. When Marina wanted it, he was the only one holding it back. I dont think it would have gone ahead without his permission. Eventually he gave in and allowed it. The whole thing turned into a debacle resulting in pictures of LHOs head on the internet and the undertaker trying to sell the coffin.
Safe to say the Kennedy family will never allow the same thing to happen to JFK.