In conclusion, the type of needle you choose will depend on your personal preferences and needs as a knitter. Your needle choice may also depend upon what yarn you are using, if you are using a very slippery alpaca fibre you will want grippy needles.
If you are looking for a fast and durable option, carbon fibre or aluminium may be the best choice for you. If you are looking for a warm and eco-friendly option, beech wood or birch wood may be the way to go.
And in case you need an excuse to buy more crafting materials, give them all a try! For the science!
Happy Crafting!