Traditionally, they've been so bad that most people prefer to forget they ever existed.
More recently, we've been blessed with consistently decent to great ones.
Detective Pikachu was my favorite, followed by the Sonic the Hedgehog movies.
The Super Mario Bros movie was decent. Didn't expect much from it, with it being made by Illumination and all. I loved all the references they included, the animation was nice, the Peaches song was hilarious, but the plot was nothing special. It didn't really do anything to stand out. As the first ever Mario movie, it didn't need to (don't mention the 1993 movie, I'm trying to purge that from my memory), it just needed to be a faithful reproduction of the video games, which it did a good enough job at. But the sequel is gonna have to shake things up lest the plot be an exact copy of the first one (as the games tend to be)
Super Mario Bros Super Show was the shit back in the day. It probably wouldn't hold up as an adult, but as a kid, I loved it.
I have to re-watch the Illumination Mario Movie, but I remember Peach's characterization being something like "Lisa Simpson in a bad mood." I always thought Peach was mellow to a fault, but that doesn't explain why she's so focused and violent in Smash Bros.
Either way, it was mostly a safe attempt at making a Mario movie that leaves you feeling hollow. It's funny thinking I wanted more from a Mario movie, but I suppose decades of hype will do that, which brings me full circle back to The Simpsons.
Now, the Super Show. That was a
trip. I watched it as a kid, and I thought one or two of the Zelda episodes were cool. Jonathan Potts gets respect for his Link, even if the script had infamous stuff like "well, excuuuuse me, Princess." The Mario episodes had good executions sparsely peppered around generic plotlines. We're talking
generic generic. I'm sure there was a Romeo and Juliet episode in there.
Lou Albano and Danny Wells did great interpretations. Walker Boone gets a shoutout for his gravely Mario voice in the Super Mario World cartoon. I just looked it up, and everyone was recast for the Mario 3/World cartoon with the exception of Harvey Atkin (King of the Koopers).
As 90's kids, we put up with some seriously questionable quality, from
Garfield and Friends to
The Adventures of Sonic the Hedgehog (Did you really have to incorporate classical music into the intro song of a Sonic cartoon?).
I could go all day on this.