I definitely prefer
Lily over
Emily or
Emmaline.
Emily is one of those names that have gotten into fashion a few years ago. The trend seems to be over now but there are SO many Emilys out there.
Lily sure is popular, too, but this has always been the case. It's a very classy name with history.
I dislike Isobella because it looks misspelled.
What about
Lily Isabella?
I know, this is a very popular variant, but still pretty.