My simple .02...
Wood holders look very cool and are user-repairable when damaged. New ones from Lotus or Chamonix are also lovely to use and works of art in themselves. Wood is less prone to static that attracts dust, and in most cases wood is lighter in weight than comparable plastic. But especially with "older" wooden holders, they can warp,develop cracks and light leaks, AND most importantly, have differing film-plane offsets. This latter issue can result in focus differences between holders, so is somewhat critical.
Because of that, I would only use newer wooden holders, or very good condition used wooden holders that I also had measured/matched the film-plane offset. And the newer wooden holders are a LOT more expensive than plastic Liscos or Fidelitys... Finally, with Lisco/Fidelity, you could also get aluminum or plastic darkslides, aluminum being more expensive. The older plastic darkslides had a propensity to break corners off or star-crack, leaving them useless. The newer plastic darkslides are stronger, but still carry a few spares just in case. The metal slides are heavier, but at the end of the day, that's what I used as my normal holders: Lisco/Fidelity plastic holders with metal slides...
I know, way more info than you wanted LOL!
Sorry,