Thanks for the feedback. dont be sorry for negative comments - I would like all opinions! Ive heard that Darcy is becoming popular but ive never met or heard of a single one. Although nearly went with Ava for DD1 and so glad i didnt as they are everywhere now where i live!
I like Delilah, if it's been your favourite name for a while, unless something else grabs you, you will regret not using it. I know several people who were talked out of their favourite name for their first DC then gave it to subsequent DC because they regretted not using a name they loved so much.
However, Delilah Sophia is a bit much, I would say a middle name that doesn't end in a "ah" sound would be better. (Unless it's a name with big family connection and emotional meaning for you, then go for it!)
Be warned however, you'll get a lot of people singing the Tom Jones song at you.
Thanks very much for all your comments. Dontmind - Sophia doesnt have any special meaning. we just have a very short surname so quite like to have two or three syllables in the first names. Suggestions appreciated! Thank you.