Mahalia HEW? Mariane WHAT? Rihanna is obviously above them. She is to the voice what Bach is to the piano.

She is definitely above average. She can be quiet good..

People who say no are bloody haters

Or maybe we just have standards of what a vocalist actually is.

Having a pleasant tone doesn't make you a good vocalist

She's not amazing, but definitely not bad either.

...or maybe they still have their hearing?

she has beautiful tone

She went from bad to average to good. She is now above good

WHYB. Dodging belts and moderately challenging notes are not good performances.
WFL, you can't hear her past the booming backing track.
The Monster, I haven't yet seen and probably never will.

She is a good vocalist. I mean.....

Yes, she can be very good. It bothers me so much when she's too lazy to do it

She used to be awful. "Unfaithful" was horribly sung. She's average now.

No. She's average.

People who claim she's good or above good vocalust better bring some live mic feeds to proove that. She's really messy and that last Monster performance made my ears bleed