I'll jump in...To me, the DTD at DL is very much like a mall. you have Wetzel's Pretzels, and jamba juice, Build-A-Bear, and the whole area of shops on both sides of a walking area. Nice and cozy, with a couple of restaurants thrown in with the Jazz Kitchen and House of Blues, and the Pizzeria, and taco place. It makes for a fun walk-through. morning or evening and of course World of Disney shop.
DTD at WDW is much larger, with boat docks, a Mississippi paddle boat restaurant,Fultons, Cirque du Soleil tent (think SantaMonica pier); yes, it has House of Blues, the AMC theatre, (no Ralph Brennan's--sorry), but lots and lots of shops, Ghiradelli soda fountain, Arribas Bros. Crystal Arts, and several other eateries, like Bongo's, Wolfgang Pucks, The Earl of Sandwich, T-Rex, etc. The World of
Disney store is larger, and right next to it is Once Upon a Toy store. DTD at WDW is larger in scope, and it has a meandering feel to it; there are even attractions like DisneyQuest, and the new balloon ride, Characters in Flight. Pleasure Island was once a mecca for nighttime party-goers with all its clubs--but they are all closed now- the area is in transition. It will be interesting to see how the area will develop. To me, the place is always changing. I'm actually old enough to remember DTD before there ever was a Pleasure Island, when it was just "Buena Vista Village"!!!