The 104th Training Corps is the only graduating class introduced in the series and the Southern Division contains nearly all of the central characters. It was active during the years 847 through 850 when the remaining recruits graduated.
Instructor Shadis's individual evaluations for 104th Southern Division
Reiner Braun - "He's strong as an ox and has the will to match. But more than anything, he's earned the trust of his comrades."
Armin Arlert - "When it comes to physical strength, he doesn't measure up to soldier standards. But I hear that in the classroom lectures, he's shown extraordinary imagination."
Annie Leonhart - "The angle of approach of her slashing attack is impeccable...she carves deeply into the target. Personality-wise, she tends to be a loner and has trouble cooperating."
Bertolt Hoover - "He's mastered every single skill that's been taught...and I believe he has a lot of potential...but he lacks drive and tends to leave decisions to others."
Jean Kirstein - "He has a deep understanding of the vertical maneuvering equipment and excels at exploiting that skill...he can also take in a situation at a moment's glance, but his personality is like a drawn sword, which tends to create conflict."
Connie Springer - "He has a fine sense of balance and is effective at vertical maneuvering. However, he's got a slow mind and often makes strategic mistakes."
Sasha Blouse - "She moves quickly and has remarkable instincts...but she has issues with structure, making her ill-suited for organized activity."
Mikasa Ackerman - "She's mastered every single difficult subject perfectly. Her talent is historically unprecedented, making her the most valuable of them all."
Eren Yeager - "Though proficient at barehanded fighting, he doesn't seem to have any other skills...but he possesses a sense of purpose that's twice as strong as anyone else's. Through constant effort, his grades have steadily improved."
A notable member who did not make the top 10 of the 104th Southern Division is Ymir. Her abilities easily surpass those of the graduate ranked in 10th position, Krista Lenz, but during the final weeks of training, Ymir began slacking off to ensure Krista's spot in the top ten and allow her access to join the Military Police.
Four of the top five graduates of the 104th Southern Division are known to possess the power of the Titans. The only exception is Mikasa Ackerman, the number one.
Of all top ten graduates in the 104th Southern Division only Annie Leonhart applied to the Military Police, Marco Bott died before choosing a branch (though he constantly spoke of joining the MPs), the other 8 joined the Survey Corps, and none chose the Garrison.
It is stated that the main cast belong to the Southern branch. There are four divisions of the 104th operating within Wall Rose, one for each major district. Prior to the loss of Wall Maria, there were a total of eight divisions operated by the Military.
It is notable that Eren Yeager graduated into the Survey Corps several days before any of the other recruits chose their divisions due to special circumstances.