Wood is light & easily manufactured to custom configurations with CNC tooling. It is also a perfect choice for some scale models, it is reasonably stiff, it is easy to modify for various applications, & wooden props come in a very wide range of sizes & pitches. However, it is also fragile & less efficient due to the strength requirement for greater blade thickness, especially at the root. Wood is OK where max performance isn't a requirement & you no longer stub your props on the ground. Examples - Top Flite & Zinger.

Nylon is tough & flexible -- it can stand substantial abuse & remain reasonably functional. Its chief disadvantage is flexibility, requiring thicker blades to minimize distortion -- thick blades mean more drag (parasitic power losses). Distortion also results in power losses as the blades flatten out, or flex out of true. Distortion can mislead a pilot into believing that he is actually getting more power from his engine, as it winds up to greater RPM from blade flattening. Nylon is a great choice for students, due to the toughness. Example - Master Airscrew (MAS)

FRP (fiber-reinforced plastic), or GRP (glass-reinforced plastic) is an engineered composite material that is tailored to the particular propeller application. Its use can result in the thinnest, stiffest & most efficient blades. It is usually a poor choice for students, as a prop-strike will often result in unacceptable damage. Additionally, the very thin, sharp blades can be devastating in an accidental human contact. Examples -- Bolly, APC