Arjun was greatest warriors of all the time due to the sun gods armour and the helping nature of the karn made him a hero he almost defeated by abhimanyu in the chakravuyhu but due to the wickedness of other kaurav kings he had defeated abhimanyu where is he when dronacharya,lakshmanakummara,dushasana was mercellesly lied in battlefield ? where was he doing when bheem is killing the kaurava brothers so please stop comparing with great arjun where has arjun instead son of indra he had worked hard to become greatest archer of all time he never betrayed or he never leave anybody in the battlefield and he always stood for dhrama this is the reason Lord Krishna had choosen him and had said him geetha uppodesham .