We were there last week and I would say Paint the Night would be my top priority. It is the best Disney parade we have ever seen. Even DD and DH absolutely loved it and they aren't huge parade fans. If the times you are there they have 2 showings, and if you can stay in the parks that late, the 2nd parade is much easier to get a spot for with the least amount of hassle and wait time. I prefer the old WOC to the new version, but DD adored the new version. If you have never seen WOC before, you might absolutely fall in love with the new version. There is nothing like that at WDW (although I suspect there may be soon in AK). Fantasmic at DL is far superior to WDW's version. We did the dining package. For us, the fact that we can sit on the ground makes the dining package the way to go because the other FP areas are standing during the show and for DD and I, that would pretty much mean unless we are at the very front we are seeing someone's back or head instead of the show. If you do the dining package, you can stay seated in the area and watch the fireworks. The new fireworks show is very impressive. We loved the view and effects from the dining package area. We tried to watch it from Main Street another night, but the fireworks were cancelled that night- I think I might prefer watching them from the sitting not quite packed like sardines Fantasmic area, than the absolutely packed like sardines having people push against you, Main Street area.
The daytime parades are both great too, and if you can catch them, that would be great. They are pretty typical Disney afternoon parades, so I would put the nighttime entertainment above them. The Pixar Play parade currently has a pre parade Inside Out float come by 15 minutes before the parade, and that was fun to see.
