well, I will make a comment every now and then on this topic about a protagonist I really LOVE, and I will probably use my list I created as a guide.
Bell Cranell:
Goals and Motivation - Bell has a Goal from before the start of the series and that is to pick up girls, but at the start of Volume one, his goals shift to being worthy of Aiz Wallenstein. For this goal, Bell needs to become stronger and become Aizs' equal.
Personality and Likes & Dislikes Bell loves the stories about heroes and their adventures. Bell is loyal and can be a bit childish at times, like when he first learned magic he wanted to test it out right away even going against Hestias' words about being patient and waiting the next day.
Weakness - Bell does not have any kryptonite type of weakness. Bell had a lack of confidence and a wall blocking his progression known as Fear, though this wall was destroyed in Volume three it was present. Not necessarily a weakness but Bell will do what he believes to be right, even if there will be dire consequences.
Dilemmas and Choices - Bell is forced into making near impossible choices, and he takes action, NOT a passive wishy-washy or no choice.