None.
To be honest, I have seen bands that have put on very entertaining shows, or sound fairly close to their recordings (I believe without the use of tapes?), but I have never seen a live performance, that sounds as polished, or better, than any band’s studio recordings. That is just a fact, that is what studio magic can do.
Truly live performances, tend to be rawer, more stripped down, voices can crack, players hit clams, sound equipment can fail, etc. So, if one appreciates spontaneity, rawness, etc., then one may favor, live performances.
My ears, and brain, get inculcated to, appreciate and favor, the studio versions. So, that is why I feel no act has ever been better, than their studio recordings.
Nevertheless, Judas Priest always delivers (pun intended). Blue Murder was phenomenal, as Sykes was such a perfectionist/. Early Guns N’ Roses, Ozzy, Kix was always a good time when playing small clubs. Def Leppard. I saw Bryan Adams do an acoustic set with was amazing. Chris Isaak is always great, etc.
I have been blessed to have seen many, many shows over my lifetime, most were good, some were not, but the audio quality of records, has never failed me. 🙂