Yeah the CX-9 was the one outlier that we test drove, since it had a 3rd row, so I consider it more of a large SUV. We decided we didn't need a 3rd row, it would just be folded down 99% of the time for the extra cargo space. I own a Ford Escape now, and my father has both an Explorer(without 3rd row) and an Edge, and the Sante Fe was every bit as roomy as the Explorer/Edge, it was significantly bigger than my Escape, yet the gas mileage was more on par with the Escapes than an Explorer.
We did like the Murano quite a bit, but it's about ~5K more for a similarly equipped model compared to a Santa Fe, and the Santa Fe is significantly better gas mileage, like 21/29 instead of the Muranos 18/24. My wife has owned a Nissan in the past and loved it, but we almost can't argue against this Santa Fe unless they have some horrible reliability issues that we just don't know about.