I would have to say my fave queues are:
1) Space Mountain: my fave ride so I guess it has to be #1. Its long and not a whole lot going on in it, but its a classic and it gives me chills everytime
2) TOT: I like the spralling trees and eery feel to it and once you get into the lobby, the whole theme starts to take over. The in the boiler room, a whole different feel to it..
3)Seas with Nemo: great underwater effect...
4) Toy Story Mania: although I have only been in it very shorty, It is very well done and brings you right into the theme...
5) EE: great themeing to the ride, a lil long but plenty of stuff to see and look at, outside and inside