I really like both Eleanor and Elinor and I don't think I could say which one is better in my opinion, they are both great but each has a slightly different vibe. I guess I slightly prefer The Scandinavian Ellinor over Elinor, because I came across it before Elinor so Elinor feels a little incomplete in comparison but it's not a huge drawback.
I don't see either of them as bland or dated, just classic. I also love how they can have a lot of nicknames and potentially fit different kinds of personalities.
Emilia Anna, proud and doting cat mummy to Russian blue Misha
My PNLs:
https://acorta.me/2Zuhttps://acorta.me/2Zvhttps://acorta.me/2Zwhttps://acorta.me/2Zxhttps://acorta.me/2ZAhttps://acorta.me/2ZzMy blog:
https://myinnermishmash.wordpress.com/