Okay but the weirdest thing about the whole "Brotherhood is better you should skip 03" discourse that's become commonplace now, it sort of forgets the world Brotherhood came out in and why you should watch the original Fullmetal Alchemist. When Brotherhood came out, the original Fullmetal Alchemist was one of the most beloved and most watched animes of all time. Brotherhood assumes you the audience have already seen it because of course you have, everyone has seen it, so it skips important information and speeds the story up because it doesn't want to bore you with things you already know. Have you ever wondered "hey why does the first episode of Brotherhood kind of suck, and why am I being introduced to like 50 new characters, and why are they acting like I know what the hell an alchemist is?" It's because Brotherhood thinks you've seen 03.
The first 7 or so episodes of Brotherhood constitute dozens of chapters in the manga, and the first 25 or so episodes of the original Fullmetal Alchemist. The Nina Tucker episode in Brotherhood, in FMA 03 takes up nearly three episodes. Yoki gets a backstory in 03 and it's genuinely one of the best episodes and taken directly from the manga and Brotherhood glosses over it because: duh, you've already seen it. And so if you skip the original you miss out on dozens of really great character building episodes like Ed and Al meeting Hughes for the first time and getting to spend a whole episode helping him free a train from terrorists, or Ed and Roy having a duel that expands on the relationship they have, or episodes where the brothers just help out random people in towns before the major story gets going.
The original also paces itself quite a bit better than Brotherhood and is more in line with the mangas storytelling. In the manga we don't find out about The Gate until nearly two dozen chapters in, and the same goes for the original anime. Like, that's a twist reveal in those stories, and it's weird that the most watched series is the one where they tell you all about The Gate in the first two episodes because they assume you've already seen the original show.
What's more, people don't know that Hiromu Arakawa helped write for the anime while she was still in the middle of writing the manga, and as a result was inspired to write scenes in Brotherhood that the anime did first. That scene of Edward getting impaled by a falling beam? Directly inspired by a similar scene in the original anime. There's a lot of little instances of that and they're great when you can recognize parallels and things in Brotherhood that are direct references to the original anime, but people don't notice any of that anymore. Because the original anime is just an automatic skip these days, and it's a bummer because people don't realize what a giant it was back before Brotherhood was released. They treat it as *bad,* not realizing it was one of the most beloved anime of its time and the problems people take issue with have a lot more to do with personal taste than any kind of actual flaw in the writing. Brotherhood was never meant to dethrone it, and the original anime was always supposed to be part of the viewing experience which is why those first few episodes of Brotherhood are so fast paced. So like, please stop telling people Fullmetal Alchemist 2003 is a skip, or it's bad, or you don't need it because Brotherhood is better. Regardless if you think Brotherhood is better or not, the original wrote Brotherhood's check. It was huge, it was beloved, and Brotherhood is *banking* on the knowledge you've seen all of it and loved it. And trust me when I say there is so much to love about the original series. It's still my favorite branch of the FMA franchise, and it's worth your time, I promise you.
