OhBecause it was already stated in the manga that Levi is the strongest , Erwin is a leader & the smart , you can be the strongest & still follow.
TO SOON DUDE, TO SOON!because Levi has two arms.
Reiner aint colossal, only Bertolt, Reiner is the armored titanBertolt and Reiner solo because they are colossal titans
Technically, you are right.Why?
Erwin is the leader while Levi is the follower right? So Erwin has to be stronger right?