Dave, I like either tung oil, or shellac put on by French Polishing. The tung oil is easier, put on as many coats until you have the desired finsih. The French Polishing takes longer but the results are quick. Because you use a tiny drop of oil in the shellac it makes the finish fairly water resistant.
Others here like True Oil, never used it so can't tell you about it. I don't like polyurethane because it you want to refilnish it later, it is hard to remove.

David