Which one will be ours?

Our kitten turned 4 weeks old today so we went to visit him. Bella had 6 kittens of which we are purchasing one. We were asked to choose a first and second choice for now so these two boys are our choices. Which one will be are baby? I included extra photos as the kittens are so cute as they explore their surroundings and each other in little mock wrestling matches. Four more weeks.