Oh my god, the main bias and hate bias is so clear here. Kirby at 35th, Bowser Jr. at 39th, Duck Hunt at 38th, Toon Link at 37th, Jigglypuff 46th, Villager 15th, Wario 16th, Luigi 20th, Olimar 23rd. Some of those are obvious hate bias.
And then meanwhile we have Marth at 34th, Donkey Kong at 19th, Ike 11th (WHAT THE BEEP???????!!!!!!!! HOW THE HECK DOES THAT MAKE ANY SENSE), Falco 28th, Shulk 31st, Link 32nd. Ovvious main bias.
I mean, some people might just have a differant opinion or are mistaken, perhapes don't know some character's viability and metagame and stuff, but many of those votes came from Main/Hate Bias.
Also anybody voting Jigglypuff down is severely hate biased, simple enough. Either that Or they have no idea how good she is.
I don't really get what's wrong with most of these placements. Sure, there's a few who are off, but I honestly think that how this tier list currently looks is way better than it has in the past.
Out of the first group you named, there's three characters who I think are way off.
-Villager is mid tier. I don't think that character belongs in top 20 considering he has next to no results in the Western scene (and those results are what I go off of when I talk about tiers) and he looses to the Top 10 (bar Luigi and maybe Ness), with the Top 5 (Sheik, Pika, Rosa, Zamus, and either Mario or Sonic) being especially bad. Heck, PALUTENA even beats him.
-Luigi is still Top 10. Sure, he barely makes it, but he's still up there.
-Duck Hunt is too low. He's mid tier.
All of the others in the "hate bias" are fine in my opinion.
Out of the second group, there's only two I think are off.
-Marth should be lower. He's not good at all.
-Ike is a good character, but eleven isn't right at all. It's just because everyone voted him up after BH5 and, due to how the voting works, he got up there.
All of the others in the "main bias" are fine. All of those characters are, give or take, that good.