Great idea TS...
I like your list. Elliot Smith and Jeff Buckley are two of my favorites.
I'll add Nick Drake and the entire Pink Moon album. I discovered it shortly after I left and it was very comforting. Each song is like gentle hug from a stranger. I think its Drake's voice...totally dreamy and just plain awesome.
And I think all three of these guys died in some tragedy and way too young. What a strange coincidence.