Tokyo looks pretty cool. I'd go there if I could work out how to eat (severe food allergies that make most Asian cuisine risky).
Have you booked rooms yet? I'd recommend staying in the little 'good neighbor' town that's right next to the park. We had a great deal at the Hôtel l’Elysée Val d’Europe and we loved it. Disneyland Paris is about a 30 minute drive from the Eiffel Tower sans traffic, so we liked being near Disneyland - right next to the train station too!
Are you doing a trip report???Tokyo Disney Sea....amazing. Heading to SHanghai DIsney in the fall!