I'm pretty sure.

I think Elsa can handle it a little better than Ariel, seeing as she's older, more mature, and has possibly dealt with a little hate before, having being locked up in her room for years.

I think Ariel would think that the things said about her were very untrue. She would be hurt, because she wasn't raised in isolation, and she's quite friendly.

^Agreed!

really? Ariel? Elsa is already called a monster and totally overwhelmed by that, I can see that furthering her anxieties

I feel that Ariel is more sensitive and openly emotional. If this was "Let It Go"-era Elsa, she might just shrug and say, "The haters never bothered me anyway."

Ariel does not care about anyone but herself and getting what she wants. Her own family and Flounder's and Sebastian's opinion of her does not matter, so why should ours?

Elsa seems to internalize criticism more.

She might get tense and summon another blizzard.

Elsa cares what people think and Ariel has shown she really doesn't give a crap. she's been different in her culture for probably her whole life and doesn't appear to be bothered, while Elsa's whole arc is about her fear of what others will say or do to her.

Elsa also shows Let It Go was a big farce when she immediately starting freaking out not twenty minutes after her supposed "IDGAF" moment.

I don't think Ariel would care

Ariel never care with what people said on her, but Elsa care.

They both are emotional types. Ariel would hate this club, and wouldn't bother coming back ( similar to how she reacts her in her own movie).

Elsa, on the other hand, is very high-strung, and basically thrives on whatever is said about her. Elsa has very thin skin, so anybody saying they don't like her would result in increased anxiety. I definitely could see Elsa lashing out at her haters.