I've only seen a few episodes of Xros, so I guess I can't actually have too much of a base knowledge on this topic, but so far I'm a much bigger fan of Fusion (which I've watched every one of about five times). I don't know if it's because I watched Fusion first or what, but the Japanese sub version just seems too literal and over-simplified. Like they don't really do sarcasm or anything like they do in the dub version. I feel this way towards a few other shows too (Sword Art Online's the only one that comes to mind). Am I the only one who feels this way?