RE: What is the difference between wood and non wood props?
The wood props I have seen are very stiff so I doubt that they flex very much. Wood props are typically lighter than APC or other composite props. An engine should rev up quicker with a lighter prop. Some engines idle better with heavy props, so that can be a consideration. Every brand claims their blade design and tip shape is the best.
There’s no definitive answer on prop selection. You really have to try different ones to find what you like. Just because I thing the ‘whiz bang XYZ’ is the only prop worth having doesn’t mean you’ll like it at all.
I mostly use Master Airscrew K series props. They're probably some of the most flexible on the market. They survive most of my landings (some might call them 'on the runway' crashes) and pull my plane around very well. Many will tell you that my props are ony good for stirring paint or cleaning your shoe soles but they work well for me.