Just learn to live with the fact that no class beats all other classes and that all classes have its function

Rangers/Artificers/Bards are the snipers, they kill you when you're not paying attention
Melee's carry a shotgun, let them come too close and they mess you up.
Wizards have the assault rifles, they need to run, see an enemy and nuke them, some have stunguns and magnums (instakill) too, but this can be overcome
Sorcerers command a bomb dropping (lvl 18 prestige) and when you're stunned by the sight they carry an asault rifle too
FvS/Clerics are the medics, they can stay alive long and still have their rifle to shoot back at the enemy.
Rogues are the knifers, they never get close enough, and even if they stab you you won't even notice it...