Anton Newcombe.

No matter how ****ed up he is he has an amazing visionary perspective of music, and megalomania aside manages to consistently create music of an excellent standard. (Newcombe is the leading man for the Brian Jonestown Massacre if your wondering)

As a lyricist though I'd have to say Daniel Johnston is probably my favourite.

And also worthy of a mention is the collective of Sigur Ros, beautiful music. Kevin Shields also rates highly (my bloody valentine).

There are just so many!..