Earth effective vs?

As the title vaguely suggests im asking what kind of monsters are weak against earth and which are weak against lightning? (of course we all know fire is effective against most enemys in PvE, as is cold damage from ember light camp to hells precipice) I havent found a specific monster who is less resistant to earth thjan other elements.

The desert mobs should be strong vs earth
therefore weak vs lightning?

But earth will own in pvp, as in most eles have lightning resist armour, and this is the time a warrior will destroy (good luck hunting )

thanks krank :P and yeah earth owns in PvP especially crystalwave and obsidian flame which ignore armor