I would vote for ebony for the fingerboard. I started getting back into ebony boards again lately after having bad experiences with one in the past (bought a used Carvin DC127 that the guy never conditioned the fretboard so it was all messed up
) and as long as you take care of it you're definitely going with a solid choice.
As Eric said above it has a super smooth/slick feel to it and it transmits sound quickly so your attack stays sharp which to me is a very good thing.
If you're getting just a plain 727 I would vote for the ebony stylistically too as it would look really nice.
