I can't really, I like it all!
In all seriousness though, I tend to lean more towards '80s rock, and Gothic Metal. And just to make things easier for you:
Kiku Collins (Jazz)
Within Temptation (Gothic Metal)
Evanescence (Gothic Metal)
Bon Jovi (Rock)
Styx (Rock)
Def Leppard (Rock)
Men at Work (Rock)
Jethro Tull (Rock)

