This is a question that has always confused me. It depends on who you ask.
Most would say he looks like Brett. After all he is Duncan's Dad. However if people don't know my husband they say he looks like my Dad.
Sometimes, I would even say he has a strong resemblance to my brother. (well, lets not go there!)
I guess I won't be satisfied until he grows up. And even then I'm sure it will depend on who you knew the best. I guess my boy is just a good mix of Lutz and Child genetics!!! Well, that's what I think anyway.......=P