[{quoted}](name=Dominick Destine,realm=NA,application-id=3ErqAdtq,discussion-id=7j6FEO4F,comment-id=0009,timestamp=2016-01-25T17:58:05.821+0000)
Having played Yasuo, Leb and Nidalee, I can tell you they require significantly less skill than someone like Syndra or Cassiopeia.
If you screw up badly with Yas/Leb/Nid, you have multiple methods of escape to bypass the punishment you could have otherwise received; This translates to a very large margin of error (aka Extremely low skill cap due to forgiving gameplay).
Comparatively speaking; If you are in a bad position or otherwise make a mistake as Syndra/Cassiopeia, you are very unlikely to survive (I.e. Very unforgiving gameplay/Very low margin of error). The two most important things in the game, that differentiate skilled from unskilled players are TIMING and POSITIONING, not spamming skillshots. The characters OP mentioned have a very flexible, very low skilled timing/positioning requirement and thus, are easy/low skilled champions.
(Lee Sin has the largest margin of error in the game, making him the easiest, lowest skill champion)
Having played Yasuo more than you, Yasuo just dies if you fuck up. He's a squishy melee glass cannon. Any cc and a sinch of burst and he's dead. Whenever I pick Leona against Yasuo (Leona as the support obv)...I literally just have to E->Q him and he dies by anything. Especially if there's no creeps around. Nida is probably the hardest to play 'well'...since you have to be in melee range to actually delete someone, and going into melee range if you don't have even moderately tanky gear is pretty dangerous.
There's a thing called skill floor, and skill ceiling. I've also played Syndra more than Yasuo and even when I'm out of position, you still have the valiant Q->E combo to stun at least 3 of them and potentially delete one. And hell, you might even survive if you kite them appropriately as a Syndra should.