On today's court, start with Breyer and Bader-Ginsberg. The Dems seemed to have selected the right ones. Scalia, Thomas, and Rehnquist had proven track records. Souter didn't. Kennedy did but has shifted somewhat. O'Connor was vetted but has turned towards the end of her career as part of her legacy building. I have no idea what was done in the case of Stephens.
Ms. Miers is an evangelical Christian, who no doubt the dims will be fearful of her voting to over turning Roe v. Wade. I am not so sure that her confirmation is a surety.
If that is meant to be a ray of hope, I would rather not put my trust in the Dems to block this one. GWB signed CFR hoping that SCOTUS would declare parts of it unconstitutional. It didn't happen as another 5 to 4 vote carried the day.