Which champ is harder

Fiora.

Between those four?

Fiora, followed by Fizz, followed by Akali, followed by Irelia IMO.

Guys..... I think fiora is the easiest

None of the above

Neither of any of those takes skill.

caught between a rock and a hard place

All do require skill, but in my opinion, I would probably say Irelia or Fiora is harder to properly play.

harder to do bad with? tough call because they are all braindead champs that can bullshit others to get a kill