This is Paul Graham’s responses ranking.

DH6	Refuting central point	Commit to refute explicitly the central point.
DH5	Refutation	Argue a conflicting passage, explain why it’s mistaken.
DH4	Counterargument	Contradict with added reasoning or evidence.
DH3	Contradiction(what)	State the opposing case.
DH2	Responding to Tone(how)	Responding to the author’s tone.
DH1	Ad Hominem(who)	Attacking the author themself.
DH0	Name-calling	Idiot!