Hi smamfa,

I agree with the others, and Zachary seems to be the one you both love the most, so go with it! My cousin and my Dad are both called Christopher - one got called Chris, and the other Christopher. No one thought it was strange when my cousin was born either. And I have a friend who deliberately named her son Michael after her brother - he loved it

Otherwise I really like Oliver and think it goes well with Max.

Hope you come to something you like