Favorite Artist(s) or Albums?

I know, I know... yet another music thread. This time, rather than favorite genres, I'm curious what everyone's favorite artist(s) or alubm(s) are.

I have to say at the present time, my favorite artist/band has to be German power metal band Blind Guardian. There's just a level of depth and progression in how their sound evolved over the years that makes them an enjoyable listen. My favorite albums of theirs (in no particular order) are Nighfall in Middle-Earth, At the Edge of Time, Beyond the Red Mirror, and Follow the Blind.