Ser Boros Blount

Okay, I'll ask; How the fuck did someone like Boros Blount (the Belly) get chosen to the Kingsguard? To explain in detail; Ser Barristan proved his valor, and was retained from the Targaryen era. Jaime's appointment, though nobody can doubt his abilities, was a political move by the Mad King to both slight Tywin Lannister by taking away his heir and secure a hostage. Ser Mandon Moore, a knight of the Vale was loyal to Jon Arryn and Robert, in noted to being extreme skilled by Jaime and Vary's. Ser Arrys Oakheart of the Reach was shown to be both honorable and courageous if nothing else. Ser Preston Greenfield is a knight of the Westerlands, meaning he would be more loyal to Tywin and Cersei than Robert. Also, he did attempt to save the High Septon so he showed courage. That leaves Cersei's creatures Meryn Trant and our knight in question Boros Blount. Both, interestingly enough, hale from the Crownlands, so Robert wouldn't name them since he had not friend to help, enemies to buy off, or anything relating to these two. neither come off as the type to win tourneys. So far, the only positive feat we know Boros has accomplished is the Tourney and Lannisport, celebrating the end of the Greyjoy Rebellion. Boros was defeated late in the joust's by the eventual winner Jorah Mormont.