Ive looked through posts about if Jarven or Irelia are worth it but couldnt find an updated post. Which one is a better choice?

irelia is a toplane pick

jarvin is a tanky counterpick with some "helpful" applications

Both have their uses, if youre doing soloque just pick irelia

Irelia is a 1-size-fits all to the agenda. No matter how much she's been nerfed she's still an incredibly strong pick. But it all matters down to the player, a good Irelia player is nothing to an exceptional J4 player, and vice-versa.