The three you mention are certainly capable of your needs, although I think you will find the MDX has quite a bit smaller interior. One more vehicle I will throw on the "wall of consideration" is the Nissan Armada. It is the sister to the Infinity and I do not believe they offer a hybrid, but as my son says about his fully loaded one, "There is nothing like taking a trip in the comfort of your living room."
Do a lot of research on the large SUV hybrids. The manufacturers felt a push to offer them, and a few models, after only 1 or 2 years, have already been dropped from production. They are not as efficient as intended.
A fully loaded Armada will be as comfortable and luxurious as the QX60 but at a significantly less cost. Very reliable (my son's has 40k miles and the only warranty issue has been the gas struts on the rear tailgate) and you will have plenty of $$ left in your pocket for those trips to Disneyland.