Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs almost the same to get the Sedona to the dealership as the Nissan.
The Nissan won't tax your gas budget significantly more than the Kia Sedona will.
As far as MSRP, the Sedona costs significantly less than the Nissan Quest.
Utility
The Kia Sedona and the Quest can accommodate the same number of passengers.
The Nissan Quest outpulls the Kia Sedona by a sizeable margin.
Convenience
The Nissan Quest's fuel tank will need to be replenished slightly more often than the unit in the Kia Sedona.
Comfort
While the front cabin in the Nissan Quest offers a bit more head room than the Sedona, there frankly isn't much of a difference.
The Nissan Quest provides more head- and leg-room to your passengers than the Kia does.
Dimensions
The Nissan Quest's tank is almost the same size as the Kia's, though the Sedona's is somewhat larger.
The Kia Sedona and the Quest compete for the same parking spaces.
Handling
With their comparable turning circles, the Kia Sedona and the Quest definitely handle approximately the same into and out of tight spots.
Drivetrain
The Nissan Quest and the Kia Sedona have similar-sized engines, with a slight advantage to the Kia Sedona.
The Quest has no lessons to learn as far as pickup from the Sedona.
Warranty
The basic after-sale protection that comes with the Nissan isn't quite as generous as the Kia Sedona's.