I was thinking the same thing! We have always had our own table!
We have eaten breakfast at both a few times and have had good and bad experiences at both (with service- food has been good for us both places). I personally like that Ohana is not a buffet- it makes me anxious if we are up getting food and the characters are circulating. I also personally prefer the food at Ohana- but that is just personal choice.
For me, it would break down to which characters are a priority for your family, and if you were planning a pre-park-opening breakfast or not (and if so, CP is a clear choice there unless you are staying at the Poly…). Also, since CP also offers a character lunch or dinner, I would have to consider doing both (Ohana for breakfast and CP for a different meal).
Another thread on this topic also mentioned that there are photopass photographers inside Ohana now taking pictures with the characters. I have not experienced this myself, but if I had a Memory Maker, this would definitely make me want to eat at Ohana- character pictures with my family without having to decide who is left taking the picture would be a plus!