Yeah, I wouldn't necessarily skip anything as there are always little differences except in a few cases. Some are better at WDW, some are better at DLR.
Exactly the same: Star Tours, Rise of the Resistance, Smuggler's Run, Toy Story Mania
Similar and Skippable: Jungle Cruise (no tunnel), Peter Pan (slightly rearranged and differnt staging), Mad Tea Party (no canopy), Dumbo (single unit), Many Adventures of Winnie the Pooh (different cars, slightly rearranged), Buzz Lightyear Astro Blasters (handheld blasters, better targeting system), Astro Orbiter (ground level), Soarin' (end scene at Disneyland)
Similar but Different Enough to See: DL Railroad (Dioramas in section between Fantasyland and Mainstreet), Pirates of the Caribbean (longer, more scenes), Haunted Mansion (shorter but some different scenes), Big Thunder Mountain (reversed and more effects), Splash Mountain (single-file, different scenes), It's a Small World (different staging and some DIsney characters worked in), Tiki Room (longer show, fountain)
Same name but Quite Different: Space Mountain (completely different than WDW Space, side-by-side seating)
Different Name but Similar: Matterhorn (same ride system/cars as Space Mountain WDW), Indiana Jones (Dinosaur), King Arthur Carousel (Prince Charming Carousel) Autopia (Speedway), Mission: Breakout (Tower of Terror), Grizzly RIver Run (Kali River Rapids), Mater's Junkyard Jamboree (Alien Swirling Saucers), King Arthur Carousel (Prince Charming Carousel)
Wholly Unique: Snow White's Enchanted Wish, Pinocchio's Daring Journey, Mister Toad's Wild Ride, Alice's Adventures in Wonderland, Finding Nemo Submarine Voyage, Monster's Inc. Mike & Sully to the Rescue, WEB Slingers, Luigi's Rollickin' Roadsters, Radiator Springs Racers (though similar system to Test Track it is so much more!), Incredicoaster, Pixar Pal-a-Round, Inside Out Emotional Whirlwind, Silly Symphony Swings, Golden Zephyr, Jumpin' Jellyfish, Goofy's Sky School (though this is a little similar to now-defunct Primeval Whirl)
That may not be comprehensive since I did it form memory, but I hope it helps!