The only big screwup I see is Souter. Otherwise, the GOP has always given us better judges than the Dems, at least in my lifetime. I didn't say perfect judges (is there such a thing?) just better judges.
Well you did qualify this by saying "in my lifetime" so...., but the R's have done just as pitiful a job over the last several decades as the dems.
Eisenhower (R) gave us Earl Warren, easily one or the two or three worst justices ever; Brennan and Stewart, leftist lunatics both.
Nixon (R): Blackman and Powell who gave us abortion, along with another Nixon appointee Berger (and the aforementioned Brennan and Stewart)---yes, Eisenhower and Nixon appointed 5 of the 7 justices that gave us Roe v Wade.
Ford (R) gave us the left winger Stephens.
Reagan (R) gave us Sandra Day O' Left-Wing and Anthony Kennedy who is no conservative.
Bush the Elder (R) gave us Souter the Puke.
Based on history, no need to vote for a R just to give us better justices because it doesn't happen. I'd pick Kennedy's Byron White over any of the "republican" justices during the last 50 years.