Personally I like the white dial better on the Overseas Dual time and Chronograph. I would go with the black dial on the date model. Here is a shot of my chrono.
But of course it's for totally personal reasons: 1) I already have some white/silver dials and only one black. Somehow I want to keep the balance. 2) Sporty watches are more sporty with black dial.
But again, it's more a personal choice.
Good hunting!
Jian