The more I look at them, I really like the white pickguard. It may not be the most flashy, but it's really striking against the black in the burst finish and the black of the hardware. It'd be a very unique looking guitar.
Black pearl might look cool. With such a dark guitar, a light PG looks too prominent, to my eyes. I mean, here's this beautiful finish, and the eye goes right to a piece of plastic. And I like how it looks with sparkles.