If you mean, who would RudyG and McCain nominate for the SCOTUS, I think McCain would be closer to Bush`s type of picks, right leaners like Alito. Since Giuliani is a liberal, I'd expect his picks would be more left leaning. The problem is, no one can be sure how the SCOTUS picks of any POTUS would turn out after 10-20 years on the bench. Just look at Ike with Earl Warren, Nixon with Warren Burger and Reagan with Anthony Kennedy.
And Sandra D O'Conner - iirc