I liked Miyavi since the due'le quartz days. Well, he's an amazing guitar player (he can torch off a guitar, like how he did with in MYV POPS).
And he's pretty nice too. He experiments with different sounds with each succeeding singles, basically keeping himself fresh and innovative.
On a side note with Miyavi, he was in a superband called "S.K.I.N." with Sugizo and Gackt, but I wonder what happened to it - a pfft project perhaps, but I hope not.