In my opinion, Lady GaGa is a MUCH more talented musician than Ayu - her voice really is amazing - but I definitely prefer Ayu's music. Every single one of GaGa's songs is the same thing reinvented, and they all center around the same subjects. Even Summerboy, my favourite song from her first album, has the line "get your ass in my bed". :| It's catchy, but come on. You can only sing the same song so many times.
Meanwhile, Ayu continues to reinvent herself over and over. Maybe she's not as strong of a performer or a singer, but I much prefer the honesty and poetry of her lyrics to that of Lady GaGa.
... though if this were a poker face v. poker face poll, I'd definitely go with GaGa.
