The differences between Renquist and Scalia and Thomas are very minimal, I think social conservatives would be very happy if Roberts turned about to be Renquist. Renquist might not be a flame thrower hard core movement conservative but he votes with us social conservatives most of the time.
The country club conservatives are more in the line with Kennedy and O'Connor than Renquist.
I view Renquist as a real conservative unlike Kennedy who is for international law and is horrible on states rights and O'Connor who is liberal on social issues.
Roberts clerked for Rehnquist, not O'Connor or Kennedy. To me that says something. It seems to me that if he had clerked for Scalia there wouldn't be as many doubts raised here. Why can we not give a Rehnquist clerk the benefit of the doubt? The President is a very smart man. He made a wise choice IMHO.