We have a Ford Territory. We chose it because it was one of very few seven-seaters that has anchor points in the third row, and we were able to get one very well priced in the run out of the last model. It is thirsty, and if I were to buy another Territory I would buy a diesel.
If money had been no object I would probably have chosen the Audi Q7.
I was recently sent this comparison chart by Baby Bunting when I called to ask about fitting three seats across one row. They said that the Territory was by far the best. This is because it's quite boxy; others, eg the CX9, may be a wider car but this doesn't actually translate into a wider second row.