
I choose numbers 2, 5, 15, and 20 to start with.
But plan any trip carefully--the hiking around Cherry Mountain can be pretty tough--some of the steepest in the Whites, and its twin summits are actually called Owlshead and Mt. Martha.
Postscript: Speaking of NH, checkout this trip journal of a hiker traveling the Cohos Trail, which traverses across the least visited and wildest parts of the White Mountains