This is a tough question my mind is always changing after every re-watch or just thinking about it. As of now I prefer faith as evil. I think there is just something about her when she is evil. She knows she is bad and she likes it for the most part. Her character has so many layers but when she is bad she is bad. I loved her interaction with Angel when she was bad and good but it always seemed like she was getting to him when she was evil. Kind of taunting him like you know you miss being this way, I found that entertaining.
Plus some of my favorite moments of Faith are when she was evil. My favorite fight scenes for Buffy are when she is fighting Angelus, Spike or Faith but faith always stands out. It is the fact that they are both slayers that makes it so interesting. I will say though Faith is just as good when she is on a road to redemption. When she came back in Angel to help I loved it I was like better watch out faith is back. So either way she is great, but the thing about Faith is she is never completely evil and she is never completely good it is a fine line and I think that is good for her character at times.
Sorry if it was confusing 😉
Plus some of my favorite moments of Faith are when she was evil. My favorite fight scenes for Buffy are when she is fighting Angelus, Spike or Faith but faith always stands out. It is the fact that they are both slayers that makes it so interesting. I will say though Faith is just as good when she is on a road to redemption. When she came back in Angel to help I loved it I was like better watch out faith is back. So either way she is great, but the thing about Faith is she is never completely evil and she is never completely good it is a fine line and I think that is good for her character at times.
Sorry if it was confusing 😉