Atelier Ayesha: The Alchemist of Dusk DX

Out of the three though, I'd have to say that Ayesha has the most enjoyable story thus far.

The crafting is significantly less complex than in its modern counterparts Lulua and Ryza, but is still fun in its own right and plays an important role in how each game develops, both gameplay-wise and story-wise.

Soundtrack is also among the best in the entire franchise, there's a huge variety of tracks that change depending on the location for alchemy, combat and traveling and they all sound very good.

The voice acting is also pretty good across the board, both in Japanese and in English.

Ayesha's battle system is a lot of fun and puts up a decent challenge with a normal/hard difficulty and lots of extremely challenging optional bosses.

The art style is beautiful and very unique, fits the game perfectly.