When the enemy team wins a game with 
I feel like they earned it.
When the enemy team wins a game with 
I feel like they cheated.
Cheated because they only won because of the champion and not because of their skill.
Which champions would you add to either list? Which champions do you disagree with?
MrBuffington2 votes is a pretty broken bot lane, is an insane mid-late game champion with a pretty strong lvl 1-2 (not so sure after nerfs though) too. is a crazy lane bully, you pretty much guarantee winning lane as him. is a ridiculously strong jungler, has really great clear speed if you play her correctly, and the perma-stealth makes early ganks and later game flanks incredibly easy. can be very powerful too, not as OP as the other champions in the list imo, but still not underpowered I'd say.
I wouldn't say are too cheap as champions. They're pretty weak early, in my experience, Wukong requires a bit of skill when it comes to using your stealth effectively, Fiora also has some important decision making.
I recently played a game with an AP Sion mid on my team, and by God we actually won that game. To be fair, I was a fed Tristana in bot lane, but Sion did help carry (had a pretty good KDA, 10/7 I think). I'd say he earned that win.
I would add 
to the list of toxic champions, Lee Sin and Kassadin because, while they do require some mechanical ability, are too heavily rewarded for the level of mechanical skill required to play them. Teemo since he's a pretty simple champion to play, but more over he can win a game without ever interacting with the enemy team, by simply running around and choking off the map with shrooms. Especially with the season 4 vision changes, it's more difficult to remove the shrooms, especially if your team isn't buying sweepers.
KingSmizzy1 votesI agree with
Teemo is pretty toxic and unfair if he gets an early lead for any reason, if he gets dcap before you can buy any mr then the shrooms he scatters around make the game nearly unplayable.
Kassadin is just so much sustained dmg with high enough base numbers that he can build nearly full tank and still burst out squishy targets.
Desiderium2 votesChampions that are unfun to play against for me are Ziggs, Master Yi, Fiora (please nerf her), Kayle, Jax (oh god Jax).
Fizz would be TOLERABLE if his Urchin Strike was the dodgeable gapcloser that it appears to be. Flashing out of it never does anything. It's such a depressing feeling. How can I outplay it using Zed or some other mobility-related character? Do you know how bad it feels to dodge something and still get hit by it? Same thing with Jax. And Wukong. And they're all toxic to play against. Noticing a pattern?
KingSmizzy2 votesI've done that so many times against fizz players, I see them start the dash and i flash out of the way only to die 10 feet from where they struck.
12tales2 votesInteresting. When I lose a game to any of those champs I think about what I could have done better.
KingSmizzy2 votesI do always think of what i did wrong and what i could have done better but that doesnt mean i always think that my loss was fair. It just really gets to me when I feel like my opponents arent trying as hard, or even as skilled but seem to get kills and win more easily.