I like Demi but none of the performances I've seen by her have been particularly interesting.

Taylor & Demi

Taylor.

Rihanna's lazy but she could improve if she put some effort into making that young sexy body dance instead of... whatever she does atm

Taylor Swift all the way I mean

Mess at people saying "Katy"....her performances are -almost- never 'boring'

Taylor.

People saying Taylor...... She's got charisma and great stage presence...a lot of artists rely on props and flashy costumes, and don't really have any natural charisma outside of it. She owns the stage well.