Kiera's the more correct Anglo spelling, I believe. After all, you rarely see Keiran instead of
Kieran.
Keira Knightley has made
Keira newly popular, but I think
Kiera's been used more often and longer amongst English speakers.
I like
Kiera and
Ciara both, but I agree that unfortunately
Ciara would be often mispronounced in NA. Especially now that there's an increasingly popular rap/R&B singer named
Ciara, who pronounces her name SEE-ahr-ah. So,
Kiera it is for ease of pronunciation and nice looks imo.
I don't like
Caitlin, pronounced KAYT-lin. It's too overused, yes, and anyway I prefer the proper Irish form, Caitlín (pronounced KAHT-leen or KOYT-leen, depending on where you are in
Ireland), or the Anglicised form of Caitlín, which is
Kathleen or
Cathleen.
Miranda
"Multiple exclamation marks are a sure sign of diseased mind" -- Terry Pratchett
Proud adopter of 15 punctuation marks. Check my profile for their names.