Between these two, which do you prefer and why?
Thanks! 
I prefer [name]Charlotte[/name]. I like the sound in general better, and for some reason [name]Caroline[/name] feels a bit dated to me. I also prefer the nickname options for [name]Charlotte[/name] - [name]Char[/name], [name]Charlie[/name], and especially [name]Lottie[/name]! [name]Love[/name] it! I know it’s on the rise as far as popularity goes, but I feel like it will always be classic (on-trend, not trendy). But go with what you love! That’s most important!
Gosh, it’s so hard to choose! I love [name]Caroline[/name] just a little bit more than [name]Charlotte[/name], but I can’t really explain why. I think I like the crisp sound a bit better. 
They are both gorgeous, though! I have to say I like the nickname [name]Carrie[/name] (if you are going to use a nickname) better than [name]Charlie[/name] or [name]Lottie[/name].
[name]Caroline[/name], since it’s now not as popular as [name]Charlotte[/name].
I prefer [name]Charlotte[/name] in general. It just seems softer and sweeter and more selfless, and while I like [name]Caroline[/name] (and love the nn [name]Cara[/name]!), I can’t help but think of the stuck-up, oh-so-frustrating [name]Caroline[/name] Bingley that I always wanted to just kill whenever I read Pride and Prejudice, haha. She’s so awful! [name]Caroline[/name] is lovely, though, and I think it’s lovely for you ([name]Caroline[/name] [name]Eva[/name]? Maybe? For some reason I just love that combo for you!), and I love meeting little girls named [name]Caroline[/name].
Plus, I adore the nns [name]Lola[/name] and [name]Lottie[/name] for [name]Charlotte[/name]!
I love [name]Caroline[/name] a bit more than [name]Charlotte[/name] right now, only because it’s refreshing after [name]Charlotte[/name] has been so oversaturated in the last decade. At least from my perspective. [name]Caroline[/name] is on the comeback though, it seems.
[name]Caroline[/name]. I never liked the name [name]Charlotte[/name], but [name]Caroline[/name] is lovely, lyrical.
I personally prefer [name]Caroline[/name]. [name]Charlotte[/name] is nice, but to my ears, [name]Caroline[/name] sounds better.
I know several babies named [name]Caroline[/name], but no Charlottes. I love [name]Charlotte[/name]. I think it’s elegant and classic
I always think of [name]Charlotte[/name] as the mature, and stunning older sister, whereas [name]Caroline[/name] is the whiny, little sister.
[name]Caroline[/name] gets lost in the sea of -line’s:
[name]Adeline[/name]
[name]Aline[/name]
[name]Angeline[/name]
[name]Aveline[/name]
[name]Eline[/name]
[name]Emmeline[/name]
[name]Evangeline[/name]
[name]Faline[/name]
[name]Gwendoline[/name]
[name]Jacqueline[/name]
[name]Madeline[/name]
[name]Marcheline[/name]
[name]Rosaline[/name]
, and -ine’s:
[name]Capucine[/name]
[name]Carmine[/name]
[name]Charmaine[/name]
[name]Clementine[/name]
[name]Eglantine[/name]
[name]Elaine[/name]
[name]Eponine[/name]
[name]Fantine[/name]
[name]Florentine[/name]
[name]Francine[/name]
[name]Geraldine[/name]
[name]Germaine[/name]
[name]Hermine[/name]
[name]Honorine[/name]
[name]Jasmine[/name]
[name]Jessamine[/name]
[name]Josephine[/name]
[name]Justine[/name]
[name]Katherine[/name]
Leopoldine
[name]Lorraine[/name]
[name]Marine[/name]
[name]Maxine[/name]
[name]Melusine[/name]
[name]Nadine[/name]
Nesrine
[name]Ondine[/name]
[name]Perrine[/name]
Regine
[name]Reine[/name]
[name]Sabine[/name]
[name]Sabrine[/name]
[name]Satine[/name]
[name]Seline[/name]
[name]Valentine[/name]
[name]Victorine[/name]
Vulpine
Ygraine
[name]Zephrine[/name]
[name]Seraphine[/name]
Whereas [name]Charlotte[/name] stands apart.
I also prefer [name]Charlotte[/name]'s nicknames: [name]Charlie[/name], [name]Lottie[/name], [name]Arlo[/name], [name]Harlow[/name]. I don’t mind [name]Caroline[/name]'s nickname ([name]Caro[/name]), but it’s very limited.
[name]Both[/name] are lovely but I do prefer [name]Charlotte[/name] for its classic elegance, majestic strength and timeless beauty.
[name]Caroline[/name] is an everlasting classic that goes down through the generations seamlessly. When I meet a [name]Caroline[/name] I always think what an elegant name and I think it lends itself to being just [name]Caroline[/name] whereas [name]Charlotte[/name] immediately makes me want to think of a nickname. I am partial to the nn of [name]Charlie[/name].
rollo
[name]Charlotte[/name]. It is a wonderful name with fantastic nicknames whereas I find [name]Caroline[/name] a bit boring and dated. At the university I attended it was a running joke that if you didn’t know a girl’s name just yell out [name]Caroline[/name] or [name]Catherine[/name] and you’d know who it was.
I used to be a big fan of [name]Charlotte[/name], but I just hear it way too much these days. Plus, a friend pointed it to me it both rhymes and has inside it: harlot. Now I just can’t un-see it. I like [name]Caroline[/name] better, in theory, I suppose, though I much prefer -ine names that have the French een sound. I also am conflicted about nickname [name]Carrie[/name], which I like but will forever remind me of the horror movie.
[name]Charlotte[/name] is so beautiful! I can’t really explain why I love it so much. I guess I just like the sound of it better. It sounds softer to me than [name]Caroline[/name]. The only thing I don’t like about [name]Charlotte[/name] is the nicknames. If I ever named my daughter [name]Charlotte[/name] I would call her by her full first name or maybe [name]Char[/name] (pronounced [name]Shar[/name])
[name]Caroline[/name]…I never can get past “harlot” embedded in [name]Charlotte[/name].
[name]Charlotte[/name] for sure. I like [name]Charlie[/name] and love [name]Lottie[/name] as nicknames. [name]Charlotte[/name]'s [name]Web[/name], [name]Charlotte[/name] “[name]Chuck[/name]” [name]Charles[/name] from Pushing Daisies. Plus, I just dislike [name]Caroline[/name] (which is weird, because I like other -line names) and the nickname [name]Carrie[/name].
They are both lovely classics that sound good on all ages. I was surprised that some thought [name]Caroline[/name] sounded “dated,” so I looked up the SSA stats (for the US)…[name]Caroline[/name] did not break the top 100 until 1994 and it remains in the top 100 at 80 as of 2012. So [name]Caroline[/name] is definitely a stylish choice for a modern baby, but it does not look like it’s going to shoot up into popularity like [name]Charlotte[/name] has (unless the royal baby ends up being [name]Caroline[/name]…).
As to your question, which do I prefer…I love them both, but [name]Charlotte[/name] wins for me. I don’t really know why except that it has just been a long-term name crush with positive associations for me…being friends an adorable girl named [name]Charlotte[/name] in 1st grade, reading “The [name]True[/name] Confessions of [name]Charlotte[/name] [name]Doyle[/name]” in 5th grade (awesome kid’s book! did anyone else read this?), and of course my favorite Sex and the City character (just kidding!! I do love the show, but it has nothing to do with my love of [name]Charlotte[/name]).
I just love [name]Charlotte[/name] [name]Louisa[/name] [name]Jane[/name]… However, hubby is now acting very ho-hum about [name]Charlotte[/name], and seems to be preferring [name]Caroline[/name] despite all my concerns about pronunciation. Still I think [name]Caroline[/name] is beautiful…but not sure how it sounds as: [name]Caroline[/name] [name]Louisa[/name] [name]Jane[/name] , I am just not feeling the flow of that as I do with [name]Charlotte[/name]. Thoughts?
[name]Charlotte[/name] [name]Louisa[/name] [name]Jane[/name]…you must be a romantic literature lover 
With [name]Caroline[/name], [name]Carolina[/name] [name]Jane[/name] [name]Louise[/name] flows a bit better, if that’s your concern. I still think that [name]Caroline[/name] [name]Louisa[/name] [name]Jane[/name] is very beautiful!