At one time, MGM was my absolute favorite park. But then...
They got rid of the animators (and Robin Williams) and gave us what pretty much amounts to a character stop.
They took away from the "Hollywood" feel with the Chinese Theater at the head of the street and gave us "The Hat"
They took away the unique things in most of the shops and gave us...well, the same stuff as everywhere else.
They took away some of the more interesting parts of the Backlot Tour and gave us screaming cars and burning rubber (and haven't updated the parts of the tour they did leave).
They took away Chevy Chase and gave us Drew Carey.
Hardly any of these were positive changes, in my opinion.
The things they have left, are somewhat stale.
They left us with what has to be the exact same Indiana Jones show as the day it opened. (It was great the first 500 times, but now...)
They left us with the Great Movie Ride (which used to have a line out the door). I love it, but then, I know who Busby Berklee is.
Like many people, I can't do roller coasters, drops, or box-in-a-blender simulator rides, so that knocks out the obvious.
So that's my opinion, and it makes me a little sad. There used to be many unique things about MGM, and I loved it. But other than a pleasantly art deco place to kill a few hours, it's not worth the ticket.