Considering the current makeup of the Senate I don't believe that any candidate to the right of Roberts could get 51 votes for confirmation. The process is being driven by special interest groups both left and right that demand ideological purity and will settle for nothing less. If Bush nominates a person who is "ideologically pure" then that person is an ideologue and would never be confirmed.
From what I have seen of Roberts, I am not sure there are too many judges to the right of him. What makes Roberts a great pick is that he is conservative but he packages it with a great intellect and charisma.
Gag me with a spoon.
So many self-defeating cowards around here.