BoA (Britney/Queen of Asia) had a performance face-off/dance-off with Britney on TV a while ago. BoA blows Britney out of the water. I don't see the fascination with Britney's dance moves. They're not groundbreaking like BoA's.
Turn to 1:02. Britney could never pull off BoA's moves and BoA still has the same energy levels today like she did back then. Britney moves like a snail compared to BoA.