Ellie is the full name of my best friend. I once knew an
Eleanor but I think she went by
Elle and
Eleanor more than
Ellie. I think it can definitely stand on it's own though I am a little bias. I slightly prefer
Eleanor nn
Ellie. I have never even contemplated getting it confused with
Allie - I also have never met one, whether it be a nickname or full name. I do like
Allie a lot as both a full name and a nickname though.