Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs about the same to get the Sedona to the dealership as the Toyota Sienna.
With respect to MSRP, the Toyota Sienna costs substantially more than the Kia.
Utility
Neither the Kia Sedona nor the Toyota Sienna has a marked advantage as far as seating capacity.
The Sienna outpulls the Kia Sedona by a large margin.
Convenience
You won't have to visit your friendly gas station more often with the Toyota than with the Kia Sedona, because both offer comparable ranges.
Comfort
Taller drivers will substantially enjoy the extra head room in the Toyota Sienna's front cabin compared to the Sedona.
While the rear of the Kia Sedona offers a bit more head- and leg-room than the Toyota Sienna, there really isn't much of a difference.
Dimensions
The Toyota's tank is almost the same size as the Kia's, though the Kia Sedona's is a little bigger.
The Toyota and the Kia Sedona compete for the same parking spaces.
Handling
With their similar turning circles, the Toyota Sienna and the Kia definitely handle approximately the same into and out of tight spots.
Drivetrain
The Toyota Sienna's engine is a little smaller than the Kia Sedona's, but not terribly so.
Torque is the force that lets you accelerate quickly, and in this respect, the Kia Sedona isn't much more powerful than the Toyota.
Warranty
The basic warranty that comes with the Toyota Sienna isn't quite as generous as the Kia Sedona's.