Looking back I can’t think of anything good coming out of the bush presidency other than it was not gore.
GW gave us Benedict Roberts, but he also gave us Samuel Alito. That's not to say I have unquestionable faith in Alito, but so far he's been pretty good and maybe some day he'll have a track record like Clarence Thomas.
Reagan gave us O'Connor, Scalia and Kennedy. He also elevated Renquist from Associate Justice to Chief Justice. Scalia, of course, was the gold standard and so was Rehnquist who was nominated by Nixon.
George H. W. Bush gave us Souter and Clarence Thomas. I've said this before, but when a Republican nominates a judge for SCOTUS, flip a coin. When a Democrat nominates, they get exactly what they're looking for.