I just watched the Chicago 2007 one too. I agree, very good. Neil showed how good he is with a guitar solo.
I also watched the 1986 Rock Arena one. It was also very good and Neil's voice sounded great but IMO the song sounds better with two electric guitars.
Was the St Georges Hall 1992 version only with one electric guitar? Or did they ask Mark by then if he could play guitar too lol!!