whichever one's name has the same number of letters as your own.
If that doesn't work, choose the one whose third letter of their name is closest in the alphabet to the first letter of your surname.
( Grrrmachine the indifference engine, Sat 14 Apr 2012, 9:25, archived)

A good bet would be
the Bee Gees to be renamed the Bee Gee by monday.
( Boris Johnson's Press Secretary, Sat 14 Apr 2012, 9:29, archived)

Cappa Bleu
14/1
( magnum, Sat 14 Apr 2012, 9:30, archived)