all i can say is this: there's not much of a difference between individual fans.
however, noctua fans are famous for being very quiet even at full loads, but this does not mean that the venturi's are loud, just louder than the noctua's, but still quite silent.
also, the noctua comes with a brown colour scheme, while the venturi's are mostly black.
so, if i were you, i'd go with the venturi's so that they might match the rest of the system (unless your pc has a brown colour scheme), but if you don't care about how they look, then the nf a14 are not bad.
tl;dr --> it doesn't matter