Guild Wars 2

Hello everyone,
So currently im thinking of making a wvw character so i can easyily go back and forth between dungeons and wvw without constantly switching up builds. However, my main character right now is a mez and as of now im full bersk. Im wondering if i should do pve and map completion on my mes or on an ele. I want a pve and a wvw char and im not sure if i should make my mez wvw and make an ele for pve and map completion or if i should pve on my mes and make an ele for wvw. I like caster types and i also like the eles mobility. With the current mez nerfs idk if shes the best pve wise now. Any opinions? Im posting this here because there isnt really a pve section specific to all im asking and its wvw related too. Whatz gonna be better for dgns and easyier to do map completion on? I cant decide and am unsure if map completion would be faster on an ele cuz of mobility and the dmg. Or if eles dmg is same as mez. Id prob go staff and dd ele. Any thoughts? Which to play where? Atm my mez is 80 and full pve. And my eles brand new. But i only have 36% map completion on my mez so far and it seems hard and long. Thanks for your opinions.
Btw its 1am and im on my phone typing this sorry for spelling errors.

any class is good for pve/map completion. ele moves faster could be helpful when completing maps tho.

Hammer guardian