I can't tell if you're trolling or not, but I'm gonna respond seriously anyways just because I'm kinda bored right now.

There are still a lot of people out there that think Bush was an amazing president. They're definitely not in low number, either. Many people also think that DBZ and Pokemon were wonderful, supreme-quality animes that easily top any other anime that has come out and that will come out. I of course, think they're the worst trash ever created, but it doesn't stop all the 13 year-olds from loving that crap. I'd say the same for Sephiroth since like all of the above, he only wins popularity polls with certain demographic audiences. Of course, some people outside of that category still think he's cool, just like all of the above as well. It's definitely not in high number though. Like if I took these forums as an example, too many people disagree with this Sephiroth stuff, so I'd hardly consider him a universal poll winner.