It's kind of impossible to answer this without more information. "I like both series" doesn't help because it depends on what you like about the series. Final Fantasy XVI isn't really a traditional Final Fantasy game, it's a very action oriented game with almost no significant role-playing mechanics (stats and equipment are super limited and don't matter; dungeons are entirely limited with zero puzzles; party members do basically nothing) and an upgrade system with more in common with something like God of War than something like FF VII (original.)
Diablo IV has a pretty strong campaign but a lot of people hate the post game stuff, and if you like trying out varied builds and such you'll probably be disappointed there too, since skills feel oddly de-emphasized and lacking in variety. Also the equipment during the campaign doesn't do much to change up game style and feels very incremental. If you want an AARPG with a good story and presentation for the genre (though the story isn't fantastic) and an interesting world it's pretty good but if you're looking for crazy builds and gameplay variety it is flat.
I personally preferred Final Fantasy XVI. I was disappointed in the lack of RPG mechanics and the extremely dark tone for Final Fantasy but it has some pretty strong characters, it's very pretty, and it's mechanically sound, if not amazing. If you go into it thinking of it as a stripped back character action game that's extremely long with a big story and presentation focus then it's a good time, at least most of the time. The quest design gets pretty monotonous.
I also had a good time with Diablo IV but after playing a chunk of the first season the seams on that game are much clearer to me. It has a good campaign but it's monotonous and changing classes doesn't even fundamentally mix things up enough, let alone just changing build and skills. I also ended up finding the loot annoying rather than exciting, which is not ideal for a Diablo game.
Both games are good but I prefer FF XVI because Final Fantasy XVI is built around being a strong story and adventure and that's where they both are strongest it leans into its strengths a lot more. Just go in knowing there are basically no role playing mechanics other than talking to a lot of people and doing fetch quests and if you like dark stories, strong production values, and pretty basic and easy character action gameplay then you should have a good time.
Log in to comment