Once you get inside the actual ride...sure, Soarin' is the same and so is TSMM.
Pirates is not the same, nor is Buzz, and both are better at DLR IMO. Buzz in Anaheim allows you to move the blasters out of their holsters, which makes the ride so much more fun. And since I just re-re-read your post and saw that you are going to WDW, then you can read that as Buzz in Magic Kingdom is the lesser ride, and is frustrating for an Anaheim-park-goer.
Star Tours is the same once you're on the ride, I suppose. Though the queue is kinda neat.
Space shouldn't even have the same name as each other; it's a very different ride. DLR's version is generally considered better, or at the very least more comfortable. The WDW version has seating more like Splash at
Disneyland, and has a t-bar for each ride (instead of the lap bar on 'land's Space). WDW's is far more like DL's Matterhorn in terms of how it feels and how you'll feel at the end of it.
That's all I can think of right now. Oh wait...IMO (and this might not be correct) Peter Pan is different at DL (but I could not tell you HOW), and small world is definitely different. Honestly I don't know which small world I prefer; it is my FAVORITE ride, or at least it was, but the disney characters at the DL version bug me still. The holiday version bugs me more (Jingle Bells does NOT go with iasw's song no matter what they think). But MK's version didn't feel right to me, not one little bit. So I'm stuck on that one. Maybe you should go on it to see for yourself. Oh and FYI Peter Pan at Magic Kingdom has FastPass, which is just odd, but since it does it makes it easier to fit into your day.
OK that's all I can think of.