>> Roberts is the new David Souter. <<
It's not THAT bad. I was vehemently AGAINST Gorsuch's appointment (probably almost the LONE voice of sanity on here, surrounded by mindless cheerleading for any and every judge Trump picks), but I would ideologically say its more like this:
Gorsuch = New Sandra Day O'Connor (USUALLY a decent conservative Republican, sincerely opposes leftist dogma on numerous issues, but is NOT a social conservative in any way and agrees with the leftist worldview on certain topics). I predicted that at the time of his appointment, and IMO I nailed it. Replacing Scalia with him was a huge DOWNGRADE. It could have been far more justified if Gorsuch was replacing a monster like Ginsburg, as that would have been an improvement.
Kavanaugh = New Anthony Kennedy (wobbly: sides with the conservative majority most of the time, but not dependable and can be easily swayed to go left now and then... key "swing" vote on important decisions). This was actually WORSE than I predicted. He was far from my ideal choice but I held my nose and supported him because I thought he'd be a SLIGHT improvement over Kennedy. So far, I'm seeing little difference. It was basically a wash.
Roberts = New Warren Burger ("conservative" Chief Justice on paper, but NOT a strong conservative and in no way "leads" the court to push for a conservative direction. Should have never been appointed CJ, as the liberal judges on the court run rogue and have considerably sway over the rest of the court. Might have been OK as an associate Justice). This was much more disappointing than I predicted, though to be fair, Bush originally wanted to name him to replace O'Connor which would have been an upgrade (Roberts is pro-life, for example)
Souter and Stevens were both disasters: they were named by GOP Presidents and touted as decent Republicans, but ended up voting reliably with the RATS, both veered further and further left over the years until they might have been even WORSE than some card-carrying RAT judges. Thankfully, no Bush or Trump judge has gotten THAT bad. At least not yet!