Tough choice, I can see why you’re stuck! I think [name_u]Brooks[/name_u] slightly edges out [name_u]Declan[/name_u] for me, especially with your middle name choices.
I may have I bias opinion because my sons name is so similar
[name_f]My[/name_f] vote goes to [name_u]Declan[/name_u] [name_u]Scott[/name_u] ! I think [name_u]Declan[/name_u] fits best with the set and I love the flow of the first and middle name
[name_u]Brooks[/name_u] [name_u]Levi[/name_u] and [name_u]Brooks[/name_u] [name_u]William[/name_u] are certainly handsome and great contenders but I feel like [name_u]Brooks[/name_u] goes with [name_u]Wyatt[/name_u] but feels stylistically different than [name_f]Nora[/name_f]. [name_u]Declan[/name_u] feels like a name that is cohesive
My favourite for you is Declan! It goes so well with your other kids names and Declan Scott is an awesome name! Out of the middle names for Brooks my favourite is William. Hope this helps, good luck with baby no.3!