depends
on what your looking for. personally, i think that caleb followill, of Kings Of Leon fame, has the best voice ive ever encountered. all at once it is raw, polished, tremendously harmonic and, quite frankly, the most powerful you could hope to hear. in addition, he has an incredible range and his voice is startling unique, a bit like paolo nutini's, except a billion times better. check out "sex on fire" to see what i mean (take note this is quite a new recording, theyre older stuff is more raw)