Super did all the right things, sure fusion is cool and I love that game too but there's something about super metroid, it's atmosphere, it's overall design, the skills first introduced to the series like shinesparking, it's just beautiful.
Zero mission did a great job remaking the original game plus adding its own twist to the later half of the game but it's a completely different feel compared to super.
Fangames like AM2R are also amazing but they follow the zero mission route, this game feels a little slower and reminds me more of super metroid.