I vote for ABC's. Then everyone important in his life is represented ...granny made the quilt, Bowtie grandpa, and teacher parents. I love your design! I think the size will be perfect once you get the border on and with ABC's on the back, it'll be reversible! My grandson is 2 1/2 and he loves his I Spy. I hear him in the mornings talking to his quilt when he wakes up...hello puppy, hello butterfly...even if it's still dark :)