I'm just going to go with my absolute favorites of 1997, regardless of genre and let you sift through them.
Godspeed You Black Emperor! - The Dead Flag Blues
(Post-rock)Savatage - Turns to Me
(Heavy/Prog Metal)Symphony X - The Accolade
(Prog Metal)Foo Fighters - Everlong
(Alternative Rock)Enslaved - 793 (Slaget om Lindisfarne)
(Progressive Black Metal)I see Devin Townsend - Bastard was already mentioned, but that would be another one.
Edit - It seems I got beat to the punch on Turns to Me, The Accolade, and Everlong.
Well that should tell you how good those songs are.