Personally here is the list of my favs and What I don't like about them:
Kircheis: Does not have any personal ambition
Yang Wenli: Does not take his role as seriously as he should have
Reinhard: Too great of an inferiority complex.
Mittermeyer: Is too obediant.
Oliver Poplan: A little difficult to find anything wrong with him... Too many jokes perhaps?!
Oberstein: Workaholic, too severe
Schenkopp: ??? Too confident
Bittenfield: Too excited when facing the enemy
Annerose: Too beautiful!!
"The Goddess of victory is waving her underwear in your faces!"
Fritz Josef Bittenfield (Legend of the Galactic Heroes)
Reuenthal - huge pride issue, also has problems communicating his feelings
Mittermeyer - willing to set himself on fire to keep a friend warm
Dusty - whatever that age complex is that he has, c'mon man. You have freckles and as such, will be carded until the day you die.
Fahrenheit - for having the velvety tones of Sho Hayami as his voice, he is too quiet. Needs to talk more.