I know you didn't say Luke Jaxon but, I think that it is cute... Just a thought (: good luck!!
I consider possible nick names. Whether u like it or not people seem to change ur baby's name. Jaxon could be Jax or Jack. Daniel could be Dan or Danny. Luke would probably stay Luke. Consider if u like/dislike any of those?
I like to look up the meaning of the names, I named my son Isaac Luke because both together means "the one who brings laugh and light". Maybe knowing the meaning will help you decide.
I like Jaxon Luke best. If you use the baby bump app, you can create a name poll to get more opinions.