Previously, I talked about the luminously talented Jodi Benson. I'd also like to say something about Paige O'Hara, who came right on her heels. Paige doesn't get the same amount of exposure as Jodi, but she also has an amazing voice, and she got to display more of her singing chops in Beauty and the Beast than Jodi did in her movie.
Jodi does gobs of voice work for Disney though, making it a regular gig on her part. Paige doesn't do nearly as much, for some reason. Is it a question of interest? And availability? I don't know; however, it does seem to me that Ariel is much more heavily merchandised than Belle is, which may suggest that Ms. Benson's character is simply more popular, even though O'Hara's movie did better in the box office.