We had a CX9 which we loved driving but finally gave it up to get a minivan. With a 2 yr, 4 yr and infant, the CX9 became quite difficult for practical purposes. Loading the kids require the rear doors to be fully opened and the long doors on the CX9 means you need a lot of room around the car which don't come by easily. The 2 older kids are also very independent and want to get in and out themselves. The high floor of the CX9 makes this challenging esp when the rear doors cannot be opened fully. 2 car seats in the middle row means the 3rd row is not accessible because the seat back does not fold down. I tried pushing it all the forward but it's still not large enough for an adult to get in. With the 3rd row up, cargo room was in adequate. A stroller pretty much takes up most of the room.
Even though we never liked minivans, we finally rented one and found the power sliding doors/hatch and interior space to be very practical. Interior capacity of the minivan is also quite a lot more than the cx9 and the low floor makes loading kids and stuff easier. There are also a lot more compartments for storage in the minivan compared to the cx9.
The trade off is we had to give up the AWD on the CX9 which i think turns out to be a good thing because my transfer case was replaced at less than 20k and under 3 yrs old because it was leaking. Other than that, had no other problems. This probably doesn't affect you since you don't need AWD anyway. Gas mileage on the minivan is slightly better than what i got on the cx9 for highway/town driving. Minivan obviously does not drive as nice as the CX9 since it's geared for more comfort with the softer suspension.
So as much as i loved driving the CX9, getting the minivan really was more practical for now.
Sorry not that I'm in the market for one but just for reference and value of this thread. Which minivan did you end up buying?