My non-anglicized favorites are
Ruaidhri,
Oisin, and
Ronan for boys, and
Siobhan,
Fionnuala and
Rioghnach for girls. I like some Welsh names too, like
Arianrhod,
Angharad and
Gwydion. I also love a lot of the anglicized derivatives, like
Finn,
Deirdre and
Maeve.
Guinevere has been my favorite for about ten years.
The problem with Creirwy, like a lot of Welsh and Celtic names, is the pronunciation. Besides that issue I like it a lot. I feel the struggle, I would love to use
Oisin and
Ruaidhri but correcting people every single time I tell people their name would just be an enormous pain.