obviously I include females as actors. 

So you can just say, (like, dislike, no opionion one way or the other, who?,) whatever you like

oh, yes, i forgot that.
I really have only have one I would consider a favourite.
But here is the list, I should have given a link to
http://mydramalist.com/list/D45G8dgL
Looking at just the top 5, all I know is Kim Sun Ah (amazing, love her) and Kim Yoo Jung. Kim Yoo Jung freaks me out too much for me to say anything about her as an actress because I've seen her in dramas and movies from when she was like...6. It freaks me out that she's growing up- makes me feel old. Like Yeo Jin Goo D: