Worse in my opinion because it's used explicitly as a defense when one finds their opinion doesn't hold weight or can't hold to scrutiny, or possibly disliked.Uriel_Hayabusa said:"That's just my opinion"
You rarely hear something to the effect of "I think owning another person is wrong and slavery should not return. That's just my opinion, and I'm entitled to it."
Similarly:
Oh, dear Batman, that one is so annoying. almost exclusively uttered in situations where it's inherently and unambiguously opinion.TheKasp said:"That's just like your opinion man"