I don't really like Mackenna on either gender, though
Kenna is ok on a girl (It's too surnamey)...
Mackenzie makes me think either of
Mackenzie Austin or people w/ that surname or the
Mackenzie river... On a girl, I'd prefer just
Kenzie, but I don't mind
Mackenzie on a boy. It's somehow 1 of the few surnames I don't mind as a fn.
Gavin and
Mackenzie sounds better than
Gavin and Mackenna.