Bias? How is the situation with Rylai's biased? That doesn't even make sense. There's a huge shitfest going on right now over that item, and that, my good friend, is a FACT.
And where did you get the impression that the champions I like are dumpstered? I don't play any assassins, bar Kha'Zix, who isn't necessarily weak, but the rework failed at doing what Riot wanted it to do for him. I don't know how you're getting all of these wacky ideas. Although, I do admit that my main, Cho'Gath, is in a really bad spot right now. Aurelion, who I also play quite a bit, has a ton of bugs that make him frustrating to play.
The nerfs to Vayne don't fix anything. She's still going to assassinate people late game by pressing Q and then clicking on them. You sound like you're a big fan of "counterplay", yet you don't even bring up how bullshit that is.
No. YOU'RE biased. There was nothing wrong with Yorick, Poppy, or Sion's lore. In fact, Sion's lore was kept mainly the same. Only Sion and Poppy had counterplay issues. Yorick was much better, although that's something that you'd obviously never understand. You just jump on the bandwagon of people who want these champions removed from the game, and then, when they finally are removed and replaced with an entirely different champion, you rejoice, claiming that they have been "saved", or "improved", even though NEARLY EVERY GOD DAMN SINGLE THING ABOUT THAT MADE THAT CHAMPION WHO HE WAS IS GONE. Oh, I would have LOVED for Sion's N64 game-looking ass to be updated, he definitely needed it. I would have loved to see them make 2 of his abilities not useless whether you were AP or AD. I would have loved to see his outdated kit modernized, so that he could be the reckless warrior that charges into battle and fucks everyone's shit up that he was always meant to be. But that's NOT what they did. He doesn't look anything LIKE Sion. His playstyle is that of a CC Tank. That's NOT what Sion was at all before his rework. They had the decision to embrace his AP Playstyle and make him a mage, or embrace his AD Playstyle and make him a fighter/melee carry. Instead, they went with NEITHER of those things.
I'm not even going to talk about Poppy or Yorick, especially Yorick. Oh, and by the way, there was NOTHING wrong with Yorick's model. I don't know where you get this shit from. He was released in late 2011.