Mazda CX9 - wife wants one badly to augment our F150. Interior that seems like it came out of a much more expensive car, well packaged, really nice to drive, seats 8 if needed, better MPG than most of your list.
Ford Edge - nice mid size SUV.
Ford Explorer - new body style only, very spacious, nice to drive, and good mpg.
Audi Q7 - beautiful inside and out, fantastic mpg with the TDI. Less reliable than the domestics.
Cayenne - somebody had to suggest it......
Toyota Venza - nice looking crossover, typical Toyota.
Regarding the Acadia, don't forget the Buick Enclave and Chevy Traverse twins. My favorite of the three is the Buick.
Dodge Durango - new bodystyle only, hugely improved.
Nissan Murano - a bit smaller but sporty.
Acura MDX- a nicer Pilot.
Of them all I would (and likely will) take a hard look at the CX9. You can get a nice low mileage used one for $20k. Go to fueleconomy.gov and look at some of your choices, some V6 unibody crossovers get really crappy mpg.