Vocally probably Ariana by a short margin. I think she is more consistent live. Demi writes her own music though so I gotta give her major credit for that. So I will say it's a tie.

Demi >>>>>>>

Ariana will always be compared to Mariah, who's better than her in any way. Demi, instead, won't ever have to be compared to anyone. + some of her songs are better than Ariana's entire discography.

Very close, Idk if its right but I picked Ariana.

They're both talented. I wouldn't say one is better than the other - they both have different qualities that make them exceptional vocalists.

DEMI without a doubt
ariana's talent is overrated

Ariana, she has a better artistic vision.

Singing wise... more or less the same.
Acting wise... from what they have released so far I think Demi tries with different roles and different generes so more credit for her...
Composing the song... Demi >>> Ari for now... I will judge this when Ari releases a bit more of her own stuff

Not to mention Demi being a role model so...

I like both, but I think Ariana is a bit more talented as a vocalist.

Comparing a debut album artist to a singer with 4...
If Ariana wins
Talent comes across in different forms, Demi is an amazing write that is talent..
Ariana is an amazing singer and so is Demi... Ariana's tone is however better than Demi's. I can't pick.

Demi is quite talented. She has a great voice and can dance if she wants to. She has a great/fun personality and wonderful stage presence which Ariana lacks. Plus she plays instruments and writes her own music. I'm quite annoyed that Demi isn't a bigger star than she is tbh.

Since Demi plays instruments, writes her own music, can sing, dance & act... I pick her

I agree with this. I think they're both incredibly talented. The one thing that bothers me about Ariana's voice is she frequently imitates other singers tones and techniques, namely Mariah. I would go with Demi just because of that as I think Demi's tone is rather unique.

But taste on tone is subjective therefore I ain't gonna answer this one. I think they're both equally talented in very different ways.

They're about tied when it comes to vocals with Ariana being more consistent.

But Demi is the superior song writer, actress, dancer, and she could play instruments

I would say Ariana, but only because she doesn't blow out her voice like Demi. Demi has an AH-mazing voice, but she needs to wrangle it in.

I didn't say that sis chill.

Demi.. .not here for Mariah 2.0

Voice = both have very close vocal range but I prefer the emotions Demi puts in her singing which Ariana lacks
I've never seen Ariana dance and I've never heard a song she wrote so I can't compare her to Demi in theses areas