Britney receives much more respect than the other two.
Britney gets respect for continuously coming back album after album, even when people say she's over, and manages to get back on top every time with flawless pop music. She also gets respect because of all she's endured in her lifetime/career.
The other two will earn respect when they start showing it with their work and other career ventures down the road.
I agree. I voted for Rihanna as well. Though I will say the general public is well aware about Britney's lack of involvement in the creative process of her music. It's been that way since day one. Nothing has changed.
You don't seem to be informed at all considering she writes a ton of music, it just goes unreleased. Not to mention she comes up with the concepts for almost all of her videos. You stay trying it