artists with most songs on all my playlists: MJ
most criminally underrated: Durand Jones and the Indications
most variety: Pharrell Williams
the one with the best song: Joe Dissan (Le Champs Elysees)
non-lyrical: Hans Zimmer
overall though... uhhh.... I'll just play it safe and say MJ for right now
I have a quite a lot
Queen
Smash Mouth
Midnight Oil
Billy Joel
Michael Jackson
The Cascades
Dire Straits
Linkin Park
Tears For Fears
Icehouse
Creedence Clearwater Revival
Cold Chisel
The Beatles
and Men at Work.