I'd like to simplify the decision-making process by focusing on your shaving goals. Are you looking for a premium feel or an aggressive shave? If it's the former, the wood or Jet series might be the way to go. But if you prioritize shaving performance, the standard Rocca could be the best bet.
I'd say try the standard Rocca first, and then decide if you want to upgrade to the wood or Jet series. You'll get a feel for the razor's aggressive nature and can decide if you want to splurge on the premium materials.