i'm a huge fan of engage, honestly. when you just skip the story, do minimal somniel, and just focus on the gameplay i think it's so much fun. they managed to make the emblems feel incredibly powerful without trivializing the game, and the more i play the more i find creative and fun strategies and character builds. at the same time, it doesn't feel like it needs to be as well thought out as something like conquest to get that effect.
obviously, the plot is a pile of garbage, but it's completely skippable so i find that i don't care that much. i put it pretty high on my tier list of FE games, and while i think it's obviously not perfect it's a fun game for me to replay, much more so than something like FE4, despite FE4's amazing story.