"Ippo doesn't know about the strength Aoki gained from his job" They forgot Ippo stacked boxes of ice and fishing equipments and carried them every morning before school, and this is before boxing.
Victims of Ippo's Arms by far: Kimura - Loses in 1 Second Aoki - Shoulder Destroyed by ippo, Then Cries for help 3rd person - Takes the Heaven route and knocks himself out Takamura - Breaks the Table with Ippo and Wins by Luck