name-calling
refutation
contradiction
refuting the central point
counterargument
responding to tone
ad hominem
finds the mistake and explains why it's mistaken using quotes
criticizes the tone of the writing without addressing the substance of the argument
contradicts and then backs it up with reasoning
explicitly refutes the central point
attacks the characteristics or authority of the writer without addressing the substance of the argument
states the opposite case with little or no supporting evidence
sounds something like, "You are just a clown."