Hands down FE4’s Birth of the Holy Knight, with so much things going on in the chapter, so many character introduced, epic player phase music and the best enemy phase music of all time: Verdane Army theme
Thracia does a really good job at letting you learn the mechanics and test out your units on the first map. There’s different ways to approach it and it eases you into the game while still being fun.
I recently started playing FE4 and I must say that I really enjoy the opening chapter! The amount of freedom you have in this chapter and the music makes for a great opening. The opening of any medium is important, because it shows what the rest of the content has in store for the one who interacts with it. It doesn’t matter if it is a book, a movie, a game or any other piece of art: a good opening is important and I think Genealogy of the holy war handles it very well with it’s amazing music, interesting dialogue, starting units and turn based events. The combination of these factors make sure that something interesting happens each turn.
I highly recommend looking into what makes a good opening when you’re developing your own hack, because it will make people stick around
tl ; dr: FE4 gives freedom, good knightbois and great music.
I’d say I particularly enjoyed Genealogy and Thracia’s opening chapters. They’re more action packed than other, plus you already have command of a group by then.
I like the first chapter of FE6. I know it isn’t on the list, but it does not fit any of the criteria that would uninclude it. It feels a bit weird that FE7 just gets a ruleexception tho, because why exactly?