Ok, here goes.
1. I have never been a huge Cash fan which is unfortunate because I can’t say Johnny 99! So JC 90: SD: 94 (like this version).
2. Yes Bangles version better. S&G: 88, Bangles 93.
3. Tommy: 87, JJ: 91
4. Never really liked the original it sort of annoyed me: Gotye & Kimbra: 62, Mayday: 90
5. You know what I’m going to say here and yes I have heard Bruce do it live: Jimmy: 88, Bruce 999.