My eldest dd's mn is
Nicole (dh chose that). I don't think there are that many
Nicole's being born these days. Between the two spellings, I do prefer
Nicole because
Nichole just looks wrong and makes me think 'hole.'
I *love*
Nicolina. It would be much more distinctive than
Nicole, imo.
Nicolette is pretty too although I have read on other name sites how this reminds people of Nicorette (smoker's gum). WDYT of
Nicoletta or
Nikoleta (Greek version)? Another version is
Nicola.