Epic or Reflection with 1 yr old

[golfusaofcs]

My wife and I are planning a cruise for next march with our soon to be son. We are a 30 yr old couple who have previously sailed on the solstice. We were trying to decide which would be best for us since we have never sailed on epic and it looks like a blast. We are not party people at all as we blend in great with the crowd on celebrity. Price is the same,itinerary is similar. I will also put in that the cruise has a potential to have both sets of grand parents one with only carnival experience and the others who normally sail on celebrity. As well as my 27 yr old bro in law. I know people may be biased so help me look at the total picture. Thanks in advance.