I wouldn't say one is easier or more difficult, but when you're inside a costume and a mask, you have to endure heat - and, often, difficulty seeing. The vision is not very good in a mask. And you have to cope with that, as well as trying to think about this character.
“Believing in progress does not mean believing that any progress has yet been made.”
“The music of language became extremely important to me, and obvious to me. By the time I was seven I was writing myself. I was a poet.”