Guild Wars 2

Hi guys,
in this 1 year and half of gw2 i did w3 like 10 times, i always liked more the tpvp.
But you know, running between 3 points and spamming aoe in small nodes can get boring after some times, so i decided to do w3 with my guild.
I have:
-elementalist lvl80 full exotic
-warrior lvl80 full exotic
-mesmer almost lvl80, i have the money and wallets to make him full exotic
-engie lvl 35, but my guildies hate engies, even if i think it could be useful with grenades

I actually used all of them in pvp, but i dunno how are the classes in w3.
From what i saw:
-elementalist: very funny in zerg fights, i actually have a bunker support build. Useless in 1v1 if builded with staff
-warrior: i’m a hipster so i’m not gonna run ham bow or hammer train things, too mainstream ;P, but the class is awesome and almost every weapon is avaible, too bad my pc is not that good so in gvg i would prefer to fight ranged to prevent bad lag.
-mesmer: i just hate how i am always the last one of the zerg, this class is so slow that just this thing make want to not log in my small asura mesmer. A part from that i like it.
-engie: look good, don’t know.

I’m gonna do basically group w3, with big groups, but i could do some small group or solo roaming some time.
What class and kind of set up do you suggest me guys?
PS: sorry for my kittenty english

If your computer struggles with large groups in PvE, its going to explode in WvW.

I’d recommend avoiding zergs and run in small groups. Small man WvW favors thieves, mesmers, and Nike warriors. I’d probably recommend warrior as you can just equip a hammer and go zerging or a rifle and go commander sniping. It’s without a doubt the most flexible class.

mesmer with traveller rune

PU mesmer is the way to go