Justice Scalia on Roberts...

From Stuart Buck:

For what it's worth: A few years ago, Justice Scalia said to a friend of mine that he and other Justices thought of John Roberts as far and away the best Supreme Court litigator in the country. I asked the friend why Justice Scalia said that, and (paraphrasing from my memory) the answer was something like this: "No matter how intense the questioning, Roberts is never flustered, and is always able to calmly answer any question whatsoever, while skillfully weaving in the substantive points that he wanted to make in the first place."