Popularity
Pokemon’s popularity is nearly unrivaled, there are several people who do not play games, but know about it. From the show to video games to card games, it’s safe to say that people know about one of these things. Anything regarding the games, especially the main games, tends to be breaking news when any new information comes out. It is hard to deny that most things related to Pokemon is something that is well known among people at this point.
You cannot say the same about Digimon, sadly, even though the beginning seasons of the show were popular in places like North America. Digimon came back into the limelight recently with the show going back to focus on the original kids, but that’s mostly it. That’s not saying the show isn’t great (you should absolutely go see the Digimon Tri), but not a lot of people follow things like the games, trading cards, or anime. You’ll find that those who do are hardcore fans, but if you go up to anybody who plays games they probably don’t know what the latest release was.
Honestly, that could come down to marketing, because Pokemon has always found a way to make sure that anything related to its franchise was known. While Digimon fell off as the seasons went on and it became the fans job to keep up with everything. That’s when it becomes harder to know when the newest game will release, unless you’re following the right Facebook groups or forums. Meanwhile, learning whatever’s new with Pokemon takes no effort because if there is a new game then you’ll hear about it. You don’t go searching for it because it’s always there. While most things could go either way depending on what you like, it is hard to argue that Digimon is more popular than Pokemon.