I prefer
Kaitlin, as stated before I'm just not a fan of -lyn endings. However, I think you should go with
Kaitlyn, because that is how you've spelled it in every post, and really I think deep down, that is what you feel your baby is named. :)
10 point scale (I based this on sound and flow with your last name, mostly):
Kaitlyn Alexandra Faith: 7
Kaitlyn Alexandra Paige: 7
Kaitlyn Alexandra Claire: 10
Kaitlyn Alexandra Pearl: 9
Kaitlyn Alexandra Odette: 9
Kaitlyn Alexandra Brooke: 6
Kaitlyn Alexandra Juliet: 10
Kaitlyn Alexandra Felicity: 6
Kaitlyn Alexandra Elaine: 9
Kaitlyn Alexandra Elyse: 9
Kaitlyn Alexandra Aimee: 4
Kaitlyn Alexandra Leigh: 7
Kaitlyn Alexandra Charlotte: 6
Kaitlyn Alexandra Juliet Wilkinson is my favorite. They are all lovely, classic names. I think the flow is good here, and the sounds don't repeat themselves. I think
Juliet adds a delicate, feminine touch to this name.
Others I like:
Kaitlyn Alexandra Claire Wilkinson: I think
Claire is a lovely classic, and it just runs superbly in this order.
Kaitlyn Alexandra Odette Wilkinson: I don't normally like
Odette, but I think it adds a bit of delicate whimsy to this name.