I don't know if it's harder but when you're playing a real person you want to honor their memory - even if they're a criminal or someone that the public loathed. That can be challenging.
I'm just not into trying to convince people like me. I always say to myself, 'It is what it is.' I walk into a situation knowing that people are either going to love me or they're not, and that's OK. I'm just going to be me. You can't be everything to everyone.