It's probably not the worst. The Judicial Appointments Commission seems competent, and has a duty to promote diversity in what was once a closed white men's club. Who chooses the JAC itself is unclear to me. How the UK Supreme Court is chosen is even unclearer! Jarndyce v Jarndyce springs to mind.

Right, but at least there is a conscious and concerted effort to maintain separation of powers. The US seems to have given up on the idea.