They could suprise me, and I hope that they do.
Part of the point of the story has always been that humans are their own biggest enemies, they made the Cylons and couldn’t manage to be friends with them, they screwed up somehow on Kobol, their top computer scientist let the Cylons infiltrate the defense computers to get his wick wet, and they persist in killing each other even when faced with a much more important enemy.
On the other side you have the Cylons, who in spite of it all really want to be like the humans, they see the flaws in humans, they point out the flaws in humans, but when push comes to shove they want to be humans. This is important when contemplating the final 5. Moore has said the final 5 aren’t like the other Cylons, of course being Ron Moore he didn’t elaborate. My guess is they aren’t full body Cylons, they’re chips or wave patterns or something else that somehow gets inflicted on a human. But that’s just a guess.