See the results of this poll: Which one do you love the most?
Respondents: 54 (This poll is closed)
- Delia : 16 (30%)
- Cordelia : 30 (56%)
- Della: 8 (15%)
Definitely [name_f]Cordelia[/name_f] 
and either [name_f]Della[/name_f] or [name_f]Delia[/name_f] could be a nn.
Another vote for [name_f]Cordelia[/name_f]. I like all three.
[name_f]Della[/name_f] is great!
I know a [name_f]Delia[/name_f] and I think it’s such a beautiful name, it fits her well! [name_f]Cordelia[/name_f] is quite heavy to my ears whereas [name_f]Della[/name_f] feels somewhat insubstantial (and sounds like a slur in one of my languages, although that’s not really an issue in an English-speaking country).
If you go with [name_f]Cordelia[/name_f] then you can use the other two as nicknames.
I like [name_f]Cordelia[/name_f] the most!
I love [name_f]Della[/name_f], so unique and fun. [name_f]Cordelia[/name_f] is a little harsh and old school for my liking. [name_f]Delia[/name_f] is a super cute nn for [name_f]Cordelia[/name_f] though!
[name_f]Cordelia[/name_f] and nn [name_f]Cora[/name_f]