Need help on what shard to upgrade

I play all of the lanes and i know picking skins comes down to who you want to play the most but in my scenario i got really lucky that i have all reserve shard skins for champs i play. But which is the most worth-it to upgrade first in your opinion?

I play all of the lanes and i know picking skins comes down to who you want to play the most but in my scenario i got really lucky that i have all reserve shard skins for champs i play. But which is the most worth-it to upgrade first in your opinion?