Try this. Make two lists, with ten people in each. The heroes list is people you respect and admire. The zeroes list is people you loathe and detest.
If you do this you can learn a lot about yourself, and if you are in the business of staff selection or HR, you can learn a lot about candidates. For example, if Justin Beiber is in either list, and Adolf Hitler is not, the candidate is either a) very young or b) not aware of the wider picture. Although having said that, I'd have to include Simon Cowell simply for the damage he's done to the music business. But that's just me.
I would also put my lists in alphabetical order so there is no apparent preference. But this could be perceived as being a bit weird.