ACDC in Hockenheim for me.
I also have a great souvenir of the Coors in Mannheim back in 98. The sky was like a really dark irish winter sky, and the Stones gave them some great lights.
I also adored Jean-Louis Aubert (Paris 95)
Among the worse IMO were :
Bon Jovi (1st show Paris 95)
Extra and Athena (Istanbul 98 - local bands)
La Place (Olympia 95)
I'm sorry about having missed The Darkness in London last year.
BTW I'm still looking for the name of the 1st opening act in Luxembourg in 95 (just before Big Country)