It sounds more handsome to me. More than that though,
Julius makes me think of that place called Orange
Julius that is teamed up with Dairy
Queen or something.
I do like both names though. Some people say
Julian sounds feminine because of its similarity to
Julianne, but I disagree. I like that "ju" sound on boys. Actually one of my gp names on a boy is
Jules. I like
Jude and
Judas too.