Sienna or Odyssey? Please read on.?

Don't worry about the overall appearance of each vehicle, a detail can do wonders. As for which is better, they both are very good vehicles. What matters is how they were maintained. Are there maintenance records for each? Is a warranty offered? Have you driven both? Have each of them been given a "once over" from a qualified mechanic? What is the mileage on each? Once you get the answers to all of these questions, then you can make an educated decision.