A few thoughts in no particular order (SD - feel free to critique):
For the prices they charge on concessions and toys, you'd think they could afford to make the tickets less than $100 a person. Nope.
They need to ban selfie-sticks. you know what I rough ridin' hate more than selfie-sticks? Selfie sticks at Disney World. Honorable mention: parents who put kids on leashes.
I dislike MyDisneyExperience (or whatever it's called now) and the New Fast Pass system. Pretty much kills any remaining spontenaity. The old Fast Pass worked great.
Sucks that they've moved pretty much all the characters indoors. I get why they did it, but it lessens the charm.
Pirates, Jungle Cruise, Big Thunder, Splash, Space, Haunted Mansion - they all still kick ass.
The new Seven Dwarves Mine Train ride is overrated.
Tom Sawyer Island is an overlooked gem. Great place for picnic lunch, too.
If you've got boys, Pirates League is totally worth it. If you've got girls, I'm sorry. Get ready to spend an absolute crap ton on the Boutique and Cinderella's Royal Table.