Simon Gallup - The Cure.
The combination of his thunderbird, Ric, Schecter and uber-precise pick playing lands him quite a unique-sounding bass tone. I saw them live outside of Chicago last year and Simon's tone was so clean that you could hear EXACTLY what he was playing. I mean, most tones that I've heard have some leeway when it comes to player precision. If he would've messed up, we would've heard it, but he was so tight it was unbelievable. And for as long as that set was (like 3 hours), that's quite impressive.
-Sam