With Fenders, I’ve tended to find, with no inherent bias either way, that I prefer the sound of maple boards. I also find them easier to see when I am in low light (yes, I do look at the board quite a bit, one of my failings). I’ve also often found that many basses with ebony boards - of which I’ve had several - seem to have a clackiness that isn’t my preference. Of course there could be other factors, for instance they’ve all been active, but even acoustically it seems to be there. I think it entirely depends on the bass though. One bad experience I had with my Squier P (Rosewood board) was the venue had a pink light in the mix and whenever it came on my fretmarkers, front and side, completely disappeared. As I wasn’t that familiar with the bass at the time it really put me off. I don’t know why the rosewood boards don’t all have separate black side markers a la the Nate Mendel.