One result isn't enough to accurately prove anything. As many players have stated before (in fact, many of you will remember Nairo himself coming here and stating it) that any character/player can perform well once, and it's down to a factor of what players you meet in tournament, and what characters you are put against. What matters most is consistency, which is an area Ganondorf is at the very least, shown to be better than Jigglypuff.
What's more, over the whole lifespan, Ganondorf has pulled in at least 250 more Top 16 results than Jigglypuff (across all recorded tournaments). In fact, if you want to narrow it down even further to just 1.1.6, Ganondorf still has double of Jigglypuff's top 16 results in this patch.
You can call Smashboards's results tracker unreliable as much as you want, but with a difference of over 250, I think you get the gist.
That said, I mention the "consistency", when in reality, Puff and Ganon consistency <<<<<<<< almost everybody else's consistency. Consistent isn't exactly the best word to describe characters on the lower end of the spectrum, I realise.
Overall, in my opinion there are at least 3 or 4 characters in this game that don't stand out well enough/lack enough results/rep etc, that it's impossible to say that any one of them is the clear worst in the game. It's strikingly similar near the top; the characters near the top are so tight in skill and usage, that it's almost impossible to decide who is the clear best. These two points alone show that Smash 4's overall balance is a lot better than past games in the series.
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To change the topic a little, it's only been a couple of days and we've gotten a decent amount of results. There are a few trends starting to show, which is good.
Keep the votes coming!