I don't hate Xion at all, I think she's sweet, but damn, I would trade her in any second if we got more glimpses into the Organization in Days. I really wish they would've shone light on everything, that we would've maybe met Naminé and DiZ again with Roxas (so it ties in better with KH2, too). Idk... the story way entertaining, but I was left feeling like I needed more (didn't play the DS version though, only watched the cutscene so I might be biased).
I haven’t watched the entire 358/2 days movie but from what I’ve skimmed it’s missing stuff but trust me when I say most of that stuff is just more Axel/Xion/Roxas development.
Also “Roxas, that’s a stick”. I wish they would have had more time to add gameplay cutscenes to the movie they same way they did with coded. That way we’ve could have seen more of the org and some of the choice moments from gameplay like Lexeuas backhanding Roxas
Also I wouldn’t trade Xion so much as trade some of the pointless ice cream scenes.