Brothers and Opinions

What do you think of the brother set [name_m]David[/name_m] and [name_u]Darby[/name_u]? Too close?
And what are your opinions on the following combos?
[name_u]Darby[/name_u] [name_m]Allen[/name_m]
[name_u]Darby[/name_u] [name_m]Ross[/name_m]
[name_u]Schuyler[/name_u] [name_u]Reid[/name_u]
[name_u]Schuyler[/name_u] [name_m]Vaughn[/name_m]
[name_u]Ari[/name_u] [name_u]James[/name_u]
[name_u]Ari[/name_u] [name_m]Joseph[/name_m]

Too close for me in terms of initials but also too different in style…kind of like [name_u]James[/name_u] and [name_u]Jace[/name_u], ya know?