I use nunchuk as well, dont switch! Switching controllers wont automatically make your driving better if thats what you are interested in (unless you use the wii wheel and your name is not ROCK DUDE). You would have to re-learn driving with another controller and you would need to learn clawing as well if you switch to a classic or GCN controller, which may make driving harder or less comfortable for you than you imagined (but better wheelies ngl). Also, some of the best players are nunchuk users like Totom, Fox and RusoX so I think which controller you use is really overrated and its not worth trying to learn how to use another (unless your nunchuk breaks or something)