For me it's fingerpicking. I've tried several times, but my right hand just doesn't want to cooperate. I'm just much more comfortable with a pick, so much so that even when I play bass I typically play with a pick. I know if I put in a concerted effort and ignored the frustration that I can get it, but the last few attempts failed miserably.
"I happen to have perfect situational awareness, Lana. Which cannot be taught, by the way. Like a poet's ... mind for ... to make the perfect words." - Sterling Archer