What is harder to play a woodwind instrument or brass instrument?

It depends on the individual and their level of musicianship. Some people find woodwind instruments easier to play, while others find brass instruments easier. Generally speaking, woodwind instruments require more breath control and embouchure (the way you shape your mouth to produce sound) than brass instruments. Brass instruments, on the other hand, require more physical strength and coordination. Ultimately, the best way to decide which type of instrument is easier for you to play is to try them both out and see what feels more natural.