Who do you think has the most distinctive rock voice?

Past or Present?

Distinctive in that everytime they come on the radio, you automatically know who it is!! Does not necessarily have to be the most musically talented.
Update: My picks:

Chris Cornell & Maynard from Tool
Update 2: I'd include Jeff Buckley =)
Update 3: Linz - You're right, how could I forget the Smashing Pumpkins!
Update 4: Ryan .. I mean distinctive as in noticeable and identifiable not unique as in nothing else like it ............
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