I loved the 1990s Disney-MGM studios. It wasn't as good as EPCOT at that time, but it was just as fun as Magic Kingdom to me -- partially because the theming was so incredibly well done. It did such a great job of invoking the feeling of certain areas of Los Angeles.
It's just a weird place now, because there's so many remnants of the original park -- the architecture, the themed restaurants (sci-fi drive in, 50s diner, Brown Derby), etc. mixed together with totally separate Star Wars and Toy Story lands. Because it's changed so much and is so discordant now, even with those new additions it's still the worst park at WDW (part of that is nostalgia for the EPCOT that no longer exists, but even with Future World being mostly destroyed at the moment I still prefer World Showcase and the remnants of Future World to current Hollywood Studios).