Aesop Rock
I concur with DynamiteKid on Nick Cave
Mikael Åkerfeldt
Tomas Haake
Aesop Rock writes amazing stuff, some of it, at least to me, seems nonsensical, but then he writes a song like Holy Smokes.
Nick Cave, for all the aforementioned reasons, I couldnt have said it better than they did.
Åkerfeldt for being Åkerfeldt and doing what he does.
Haake... well, besides being an amazing drummer, he writes good, interesting, weird, stuff.