I prefer
Isabelle (actually
Isabel) but
Isabella is okay too.
Isabella is trendy and frilly while
Isabelle is more timeless.
Isabella Sophia is really gorgeous, though!
Isabelle Sophia would be fantastic as well.
I adore
Lilly but ONLY spelled
Lily.
Lilly looks wrong and messy to me.
Madeleine is stunning said with a -line ending, and nice with a -len ending. I don't like it with a -lyn ending, though.
Lilly,
Madeleine and
Isabelle /
Isabella is a very nice sibset. I think
Isabelle fits better with the sibset.