In the Apology, what is Socrates best argument to prove his innocence?

I believe that Socrates best argument is his second one.

Explanation:

Socrates’ second argument against the charge of corrupting the youth presents a dilemma. Although Meletus asserts that Socrates corrupts the youth deliberately, Socrates vehemently denies this (p. 29). Assuming that the alleged corruption is not deliberate, Socrates then presents Meletus with two possibilities: “Either I do not corrupt the young or, if I do, it is unwillingly, and you are lying in either case” (p. 29). If he doesn’t corrupt the young, then he is innocent of the charge. But even if he corrupts the young unwillingly, Socrates continues, he ought not to be brought to trial, for the proper response to someone who is unwilling doing harm is to instruct the wrongdoer, and not to avoid them, as Meletus has done.