As a long-term minivan owner since 2003 (two Odysseys and one MPV as 2nd car for a few years), after 6 seconds in the Kia I just said "No.", and so did a good number of dads around the van at the Auto Show in January. The Sedona has the same issue the Quest had: minivan exterior, SUV interior. People buy vans for the room and utility, not for their looks. Remove the ability to move from 1st to 2nd row, remove 3rd row room and make the 2nd row nearly unremovable and you have a terrible van. Had I been on that comparo, my scores would have sent the Kia deeper in 3rd place.
Just did a 1200km stint in my Ody, still don't understand the numb steering comment from Jacob (10.6 l/100km, loaded to the windows with cargo, through New England mountains).
Ody vs Sienna is pretty much a draw, and personal opinions will vary per trim. I loved the SE, but it was pricier than my Ody EX, while the price-matched Sienna LE looked much cheaper inside. The 'yota has a few flaws, like 3rd row hinges resting on the floor in the rear well, and poor storage prior to the recent redesign of the interior. I also don't like the grey plastics in the Honda, the reason why I got a black one - they come in taupe colour scheme, very Audi-esque in its difference from the usual beiges and greys (my previous Ody had the likewise unique olive interior).