LBJ WAS great. He regularly gave interviews on the shitter, what else do you really need?
Not sure about all this Clinton love though, he wasn't a bad President, but... the best? He didn't really do anything. He was President during what was probably the least eventful 8 years in American History. The thing that most people remember about Clinton is the Monica Lewinsky affair. I can't think of a single instance where Clinton took a strong stand on pretty much anything. That said, I don't really think he was challenged to during his two terms either.