User blog comment:Gcheung28/Game of Thrones Character Tournament - Round 1/@comment-67.142.176.22-20141119181523/@comment-5014364-20141119183029

It's cross-referenced with people actually in a position to take the throne. Barristan Selmy is a Kingsguard sworn never to inherit or rule. Shireen is Stannis's only heir...and thus one of the characters who could plausibly end up on top within the story. Same goes for Maester Aemon - he swore holy vows never to rule anything.