Malack

It's a hard one. I have to be honest, main characters in fiction really rarely are my favourite ones. Roy is a bit too normal for me, he has the same kind of personality most main protagonists usually have. Of course, his development over the course of the story is still very well done, and he definitely isn't as dull as some other heroes in other popular stories.

On the other hand, Malack is probably one of the characters who was the most interesting, enigmatic, shocking and yet somehow likeable, for the short time he's been around.

Characters like Roy are the backbone of a good story and allow it to go forward, while more particular support characters like Malack are what make it entertaining and make us enjoy not just the main plot, but also the whole universe. Malack did that job heroically, and that's why he gets my vote.

Nale

I don't think I need to really explain that one, while not being one of the best characters, he still gave us some interesting arcs.