The only thing I feel extremely strongly about is that the best version is NOT Paris. I get what they were going for, an updated, somewhat more dimensional version for the nineties, but it's just off.
I'm most familiar with the DL version, so that's my default, but there are absolutely some 1.0 quirks to that particular version of the ride, and some scenes don't have anything going on in part of the room-subsequent versions did a better job of spreading the figures out so that the rooms weren't lopsided. The America room is mediocre, and the Toy Story characters are by far the worst character figures.
WDW has the worst first impression because it wasn't built with the facade, but parts of the actual ride are staged better. The "flooded room" setup is nice in the sense that you don't see how old/neglected some of those DL platforms under the scenery are that are right next to you beyond the flume, but in some areas the water doesn't extend all THAT much further than it does in California, which makes it all sort of pointless IMO.
I don't care for the staging of Europe in the WDW/Tokyo version.
Tokyo's is basically the same as WDW, but brighter and with characters, so eh? At least they have the proper facade here, and the redone load area is worlds better than what was there originally.
I really enjoy Hong Kong's version, actually, but the load/unload area is quite ugly, spartan, and basic, which really takes the whole thing down a peg. On some days, I might consider this version to have the best facade-the colors all work well together and I like the added lights at night.
I'd love to see an AA count of all the versions side by side, because some of them feel much sparser than the California original, but I have a difficult time discerning if that's accurate or just my perception.
