My 7 year old is ridiculously excited about Peter Capaldi, he loves the way he looks, loves his voice and loves his stare.
More than that, the idea of an older doctor and the 50th coverage has turned him onto classic who, and his most treasured present from santa was a sea devil action figure and dvd of The Sea Devils.
Kids are, on the whole, interested in character and stories, not so much pretty boy looks