Who Makes The Better Judge: Keith Urban or Blake Shelton [POLL]

American Idol on FOX is heating up with Keith Urban as judge.  And on NBC, The Voice is set for season 4, premiering Monday night March 25th with the return of vocal coach, Blake Shelton.

But here's my question, who makes a better judge or in the case of Blake, "vocal coach?" Both have appealing personalities and good looks.  Both have a huge fan base.  Blake may be associated with The Voice here in the US but many are forgetting that Keith did a successful season on the Australian version of the The Voice.

Who do you think makes a better judge?  Keith Urban on American Idol or Blake Shelton on The Voice?