I've always been someone who has an eclectic taste when it comes to music. It doesn't matter to me what genre it's from, all it needs is to sound good.
That being said, there are a few bands/artists that I do return to on a regular basis, and I do have personal favourite tracks from said bands and artists.
Nightwish - I Wish I Had an Angel, Ghost Love Score, Amaranth, Imaginaerium and many other tracks that would take too long to list.
Tuomas Holopainen* - Glasgow 1877, Into the West and Duel & Cloudscapes
Enya - Everything. Just everything she's ever done. Enya is that talented in my opinion.
Depeche Mode - Enjoy the Silence, Personal Jesus and World in My Eyes.
Hybrid - True to Form, Know Your Enemy, Out of the Dark and Dogstar.
Queen - You're My Best Friend, Bohemian Rhapsody and Killer Queen.
Within Temptation - Aquarius, Paradise and Edge of the World.
Epica - Obsessive Devotion, Chasing the Dragon, The Phantom Agony and the majority of the album The Classical Conspiracy.
*Yes, I do realise that Tuomas is the lead songwriter and pianist of Nightwish, but I consider his solo music seperate from his work on Nightwish. You'd be surprised at how different his style can be when he's working on his own!