Keep away from anything water based if you can. Water will raise the woodgrain and can cause planking.

I think generally, the safest accepted cleaning product to use on a playfield is Naphtha, as it won't harm the paint, any clear coats (be it lacquer or automotive style), is non abrasive, and since it doesn't have water in it, it won't cause planking. Plus it'll remove old wax residue, leaving your playfield fresh and ready to accept a new coat of wax. Just keep the stuff away from mylar, as it'll breakdown the adhesive.

Naphatha should be your go-to. Don’t mess around with Novus 1 for this type of thing. Novus 1 is going to be more expensive, and FAR less effective at removing wax residue—if it’s even effective at all. Naphtha’s job is literally to dissolve wax, and it leaves absolutely no residue. Use it with a nice terry cloth, and you’ll be in business.

Save the Novus 1 for your ramps and plastics.