Alright we've all known and loved this game since we were a lot younger. And due to feelings of nostalgia we wont delve deeply into it to correctly form an opinion. The interesting fact is that lots of the story and setting get convoluted due to the fact the Sephiroth looks bad ass and has a really long sword. On the first point and case, if one looks into the story; the only truly evil character on a macro level... is and will always be Hojo. Hojo had done many evil things in the story to many of the characters. And all bad events can be linked directly or indirectly to him. Thusly, when you start to make these connections you begin to realize all the intricacies that could have been focused on in the game but weren't. As I play the game for some ungodly-th time I've come to realize that concepts of the the setting were incredible. The idea of Mako, Live stream, Materia, Ancients, Jenova and other things. Had not been focused on to the full extent they could of as well. In a similar fashion to FFVI it was the most well developed FF setting and even some of the best plot lines. Another major issue I've seen is the mis conception that Sephiroth survived being thrown into a mako reactor. In the earlier parts of the story, and in some minor hints, you learn that many people in the setting were clones of Sephiroth that eventually all end up being killed by the only successful clone Hojo created. This would explain the plot hole of 'Why the hell did Sephiroth kill the President." Though a theory this one makes a lot of sense. Hojo had finished his clone and when it got out it took Jenova and made his way out, killing anyone in his way. If that isn't the case then there is still the issue with the lacking plot behind the killing of the President, and the further plot whole of why he left Hojo, Rufus, Heideger and the others alive. Some of the side character story lines were colorful, like Yuffie's, Barrets, Reeve's (Cait Sith) and to a lesser extent Vincent. A nice touch in my eyes.
A rather recent thing I've noticed. In the sprited in FFVII Sephiroth had a limp... where did that go in Crisis Core and even the kingdom hearts?