It much more finger picking and so it depends on what style of guitar you play. I think if you play with your fingers on guitar (like Paul Simon) than guitar is harder, but if you play electric with a pick, im sure than banjo is like hell. Some people are predetined to like certain instruments more than others, for those people, what they love is easier than what they do not. I don't feel any one instrument is harder than another.

i finger pick on my guitar alot..., but banjo is still damn hard for me...