If you had a DS called something like Daniel and then you had a DD would you consider calling something like Isabel or Annabel? After all, the 'el' in Daniel is pronounced 'ull' rather than 'elle'. Or would you think as a pair of names that they were a bit samey?
Can I ask a similar question then? What about names ending in -an? Both my dh and ds have names ending in -an, but some of my favorite names for the next dc end in -an too. And I don't want to be left out!