User blog comment:N00bpl0x/Why are some ADCs considered superior to the others/@comment-5077844-20130628100518

The thing is simple. Some ADCs are just safer than other ones.

has enormous potential and is close to unstoppable if fed, however he is easy to shut down in lane if approacehd correct. A fed Twitch will carry a game, and underfed Twitch will mostly be weak.

and his friends are picked because they are easy to handel by onself. Ez, for example is rather independent from his supports plays in order to fight the enemy carry, simply because he is mobile and versatile. Twitch can only hit the enemy and hope they go down before him. This is why twitch will need a good supp to aid him, whilst Ezreal might even win with a bad supp.

It's mostly aobut the difficulty and safety of ADCs