Which do you like better:
[ol][/ol]
And why?
[name]Catherine[/name] [name]Felicity[/name] is actually one of the name combos we’re considering if we have a girl, so of course that’s my favorite of your choices! I love that together the names mean “pure happiness”. I also like the contrast between fairly popular [name]Catherine[/name] and less common [name]Felicity[/name].
[name]Catherine[/name] [name]Lily[/name] and [name]Catherine[/name] [name]Violet[/name] are also beautiful. If I had to choose between them, I would probably go with [name]Violet[/name] just because I love “V” names, but either would be great.
[name]Emma[/name]'s a pretty name, but the flow of [name]Catherine[/name] [name]Emma[/name] feels off to me. [name]Emma[/name] [name]Catherine[/name] sounds better [name]IMO[/name].
My favorite would be [name]Catherine[/name] [name]Lily[/name]. I love the contrast between the serious, classic [name]Catherine[/name] and the more light hearted [name]Lily[/name]. Second would be a tie between between [name]Catherine[/name] [name]Violet[/name] and [name]Catherine[/name] [name]Felicity[/name].
[name]Catherine[/name] [name]Felicity[/name] by a mile! It’s so beautiful!
I like [name]Catherine[/name] [name]Lily[/name] the best. 
I like [name]Catherine[/name] [name]Felicity[/name] and [name]Catherine[/name] [name]Emma[/name], too, and I love [name]Violet[/name], just not with [name]Catherine[/name]–but the sweetheart [name]Lily[/name] pairs so wonderfully with the classic, timeless [name]Catherine[/name]. I would love to meet a [name]Catherine[/name] [name]Lily[/name].
[name]Catherine[/name] [name]Felicity[/name] and then [name]Catherine[/name] [name]Lily[/name] for me.
[name]Catherine[/name] [name]Felicity[/name]! It’s the rarest of the middle names and also a personal favourite of mine.
Thank you all so much for the feedback. Definitely helps with the decision!!
I love [name]Catherine[/name] [name]Felicity[/name]! My name is [name]Cathryn[/name] and [name]Felicity[/name] is one of my all time favorites that my DH nixed, so [name]Catherine[/name] [name]Felicity[/name] is a big time winner in my book.
My name is [name]Catherine[/name] [name]Meredith[/name]! I know a lovely little 8-year-old named [name]Lily[/name] [name]Catherine[/name], and while I like the two names together, I think the flow is a little weird in [name]Catherine[/name] [name]Lily[/name]. I love [name]Catherine[/name] [name]Violet[/name] though.
If I remember correctly, I think one of the little girls who was killed in the Newtown shooting was named [name]Catherine[/name] [name]Violet[/name]. I don’t know whether that makes it a name you’d want to avoid or one you’d be more likely to use, but you should probably be aware of it.
I am a [name]Catherine[/name] and it is a lovely classic name so why not go with the less mainstream [name]Violet[/name] or [name]Felicity[/name] as a middle name rather than the very popular [name]Lily[/name] or [name]Emma[/name]. My middle name, [name]Ann[/name], is so dull!