The 2011 National Dog Show Presented by Purina Best in Show champion is the Wire Fox Terrier: GCH CH Steele Your Heart. His friends call him "Eire," pronounced "Ira."
The Wire Fox shared a category with the Smooth Fox Terrier until 1984, and except for their coats, these terriers are essentially identical - paintings suggest that both coat varieties have existed since the middle of the 18th century. Playful and friendly with tons of energy, the Wire Fox is eminently trainable (though she's often an escape artist!) and great with kids.
The winner comes from the Terrier Group, of course. The finalists from the other groups:
From the Toy Group, the Affenpinscher: GCH CH Banana Joe V Tani Kazari
From the Hound Group, the Whippet: GCH CH Starline's Chanel
From the Herding Group, the Australian Shepherd: GCH CH Propwash Reckon
From the Non-Sporting Group, the Dalmatian: GCH CH Spotlight's Ruffian
From the Sporting Group, the English Springer Spaniel: GCH CH Cerise Tender Is The Night
From the Working Group, the Bernese Mountain Dog: GCH CH Blumoon's Tanzenite v Blackrock