Well yeah, Souter was a terrible SCOTUS judge, but I split the GOP judges into two categories: good picks, and duds, so he ended up on the “dud” side along with lesser duds that voted the right way more often, like O’Connor.
So by those ratings, Reagan was 2-2, GHWB 1-1, GWB 1-1, Trump 0-2 (although that could change if Kavanaugh votes to overturn liberal “precedents” like Obamacare and homo marriage, which I don’ think he will)
I think you gotta have a third category for Souter (and Stevens) cause they are solid marxists which is so much worse than O’Connor or Kennedy or Roberts. A dud is a disappointment, not pure evil.