I still rank Re:coded higher than Days, but while I enjoyed the story and some of the characterization (Data Sora > actual Sora), I wouldn't rank it as high as, say, DDD and KH2FM for me (though at least this one's story functions better than KH2's mess of a story). That being said, I still think, with the exception of not having Flowmotion, this game is the best the gameplay has ever been, hands down. I loved the variety, I loved being able to replay bosses, the system sectors could be repetitive but were also very nice puzzles, the leveling grid thing was the most ambitious leveling system I have ever seen in this series, and it took the Command Deck of BbS and made it better, while taking Days' panel system and actually making it fun.
Gameplay-wise, I definitely find it to be the best, even if overall it doesn't rank as high as the others.