American Idol: Justin Guarini weighs in...

I got a call this afternoon from season one runner-up Justin Guarini, host of TV Guide Channel's "Idol Tonight" and resident celebrity blogger for Fancast.com. We gabbed about David vs. David.

"I think it's going to be the smallest margin of victory in 'Idol' history," Justin said. "It's the first time we've seen two guys go head-to-head since Clay (Aiken) and Ruben (Studdard) and that was very close. Like (in season 2, their differences make the competition that much more exciting."

Justin, who will be touring this summer begins hosting a show on blogtalkradio.com June 3, was forbidden from predicting a winner but he did share his impressions of the finalists.

On David Cook: "What I like about Cook is his experience and above everything else, his musicianship. He's a fantastic musician and has taken all the curveballs thrown at him with the different genres and made himself very comfortable, arranging the songs to suit him perfectly."

Of David Archuleta, Justin said: "The fact is he has the voice of a 30 year old and the musicianship of a 30 year old vocalist in a 17 year old's frame. He's absolutely masterful with his interpretation of songs."

He thinks both Davids are destined for major musical stardom because "they both have the ability to accompany themselves and to write music. With the way 'Idol' is set up now, they are both virtually guaranteed success."