Baby Name Poll

My name is Lauren, my husband Tom have been married for 5 years and I are expecting our first child together and we are . I have two children from a previous marriage, Melanie Nicole (15) and Andrew Michael (13) who love with us full time, Tom also has a daughter from a previous marriage named Sophie Elizabeth(9)who lives with us every other week. We really love these three names and we would really like your input for which name is best. It would also be very helpful if you could share some tips for breaking the news to our kids, we both think that Sophie will be excited, but we really think my two are going to have a hard time with it especially Melanie since she and Tom tend to buttheads a lot. Any advise is welcome we appreciate it so much!