Actually, only in the vaguest of terms. To be a little more accurate, the Symposium is merely an organization of the brightest minds of the pokémon research community. Think of it like a think tank meets a more casual forum. While we do indeed meet to address issues that the pokémon professional world faces, the main point is to gather together to discuss ideas, swap information, and network. And occasionally gain funding. The Symposium does that too.
So within the Symposium, when I say “highest ranking,” it’s probably more accurate to say “most respected.” Symposium members, on the most technical level, don’t have official ranks. Technically speaking, Professor Oak isn’t more important or powerful than I am within the organization. However, according to the Symposium’s culture, there are several researchers who are simply more respected than others or considered to be the foremost among us. Those include the regional professors (Oak, Elm, Birch, and so forth). Anyone else tends to be seen as increasingly less senior until you get to the newest members of the lot. I’m not quite at that level (because people know what I can do), but I don’t think I’ll be at Professor Oak’s or Elm’s level anytime soon (…because, ah, people know what I’ve already done).
On the other hand, it’s also true that some information is shared only within circles of these “high ranked” professors, often because widespread dissemination of such discoveries would cause widespread panic, which means there are ranks, but only out of necessity. (Meaning these ranks aren’t associated with power so much as the need for a particular skillset or expertise.) Take Mewtwo for example. Information about that pokémon is highly restricted for an overwhelming list of factors that may or may not involve more than one government, the global economy, and at least one amusement park, so only the topmost Kantonian researchers—those involved with plans for dealing with it or those involved with the cataloging of all known information regarding pokémon via the National Dex Project—know anything at all about it. Well, them and me, anyway, and the only reason why I know anything about it is because I am very good at what I do, not because of where I stand in the Symposium.
As for champions, that’s actually an entirely different organization. They’re with the Pokémon League (or, well, their particular pokémon league), which is a bit difficult to describe but can best be summarized as “regional recreational organization.” That is to say, while League members are often called upon to help protect and maintain their respective cities, it’s mostly because they’re the strongest trainers in the local area. Otherwise, they have about as much power within a city as a baseball player does, as the Pokémon League is essentially the Major League but with a lot more violence. League members generally don’t have ranks compared to one another because most leagues are pretty cleanly separate (so while Lance, the Johto champion, ranks higher than gym leader Clair, he’s equals with Unova’s champion Iris because those are two separate leagues). However, as you probably also know, different cultures might have very specific opinions about particular regions, which sometimes translates into … cultural bias, to put it as tactfully as possible. (So if you’ve ever heard the story about Unova’s champion Iris setting Kanto gym leader Blue on fire for a badly timed comment regarding their respective regions and the pokémon teams of Lance, her, and former champion Red … you now know why.)
There is, of course, a governing body (that is, an organization tied to the actual government) that oversees the League and outlines rules and regulations, inspects facilities to ensure everything is in line with government standards, sets pay, and a myriad of other things, and this is called the Pokémon Association. Champions (as well as gym leaders and Elite Four members) can all be members of the Association, but their rank within their league is irrelevant to the board. Furthermore, internal ranks within the Association are extremely complicated and can best be described with a heavy sigh and the word “politics.” I can say this knowing full well that I’m both high-ranked in the Association and almost completely irreplaceable thanks to my connection with the storage system.
The latter of which he is only because literally no one else in the storage system administrative circle hates ourselves nearly enough. —LH