I used to think it would be a good idea to have them elected, but after reading all the arguments I reconsider. But still, I'd like to share some toughts about it:
--Many State Supremem Court Justices are elected. They're decisions seem little worse than any other State Supreme courte Justice.
--Better yet, a lot of states have their all judicial branch elected. Once again, it seems little worse than any others.
You know what happens? Good judges who uphold the law are booted out by the people for failure to be "tough on crime." At least, this is the case in Wisconsin. It's bad enough when DAs are fired by the people because of low conviction rates. When judges also have a built-in incentive to convict, it kinda undermines the whole "innocent until proven guilty" thing.
WI sounds different than IL in that respect. I've seen many judicial elections and retention votes here at the circuit, appelate and supreme court level. I can't recall any that have been about convivtion rate for criminal cases.
Circuit court elections are generally about experience vs. Bar ratings. For the retention votes, a judge is turned out in only the rarest cases, usually for unethical behavior that gets significant media attention. Even when there was an extremely unpopular decision at the circuit level a few years ago, it did not result in a failed retention bid.
Appellate and Supreme Court elections are even less about conviction. Most are judges moving up from lower courts, and at the circuit level most judges aren't in the criminal division. At best they take a rotation there. The result is again about experience and consistent approval from the lawyers who work with them.