I don't have one that I favor all the time. It varies who I like more. And it rotates. They all have strengths. And weaknesses. I love them all so much. But sometimes I want to kill them all too. So yes and no and yes?
I really do love them equally but I feel like there is something extra special about #1 just b/c it was all so new and exciting and the anticipation of the unknown. Maybe this means I don't love them equally?
Right now, no. They stay pretty even with their annoying/omg adorable balance.
When DS2 was a baby he was my favorite for a while. Such an easy baby, while big brother was a 2 year old terror. But then when DS2 was like 15m-2.5, he cried SO MUCH and never slept, endless tantrums, while 3/4 year old DS1 was delightful and learning so much, I just loved talking to him and playing with him.
And also how different the "favorite" dynamic would be in large families v small. Like right now it's easy for me to be okay w liking one a little more at a certain time b/c I know the other one will come around soon enough (like maybe the next minute lol). But if I was trying to mentally think about it for 5 kids or more I think that would be harder.
I love them all the same, but DD3 is seriously awesome. She's so funny and sweet and everything she does my H and I freak out over it. We just seriously love her and she's the greatest. My other two are older and they have really good qualities too. But right now I'm obsessed with #3.