We are also just back from Disneyland Paris. For the Princess parade we found an empty bench (there were several) at the back right corner of Le Theatre du Chateau (C2 on park map) outside Arcade Omega (D1 on map). It was very quiet in this area, even during the parade.
One evening by chance just before park closing at 8pm, we were walking back from " it's a small world" and just near Fantasia Gelati (c19 on park map) there were about 10 different characters signing autographs and only about 5 children around with various adults. This was great as there were about 2 characters per child! They had loads of time to interact without any pushing or shoving (which made a change). Tigger was there, and Rafiki, Friar Tuck, Flora and Fauna and several others.
Anne Marie