Is Toughness a Waste of Time?
Yes, even with toughness, most mobs hit you hard.
it’s all about the defensive utility skills and dodge roll
Passive defense and eating hits will always be inferior to active damage mitigation. If you are getting started and are not so familiar with the boss tactics, it might be a wise idea to mix in some soldier’s (PTV) gear to give you some room for mistakes. After you go through the same encounter for the 100th time, you already know what to watch out for and will do just fine with pure berserker’s gear.
You can get decent damage mitigation from:
1) Evades
2) Endure pain (against direct damage)
3) Berserker stance (against conditions)
4) Evades and blocks provided by weapons (greatsword 3, offhand sword 5)
5) Keeping enemies CC’ed (frost bow against bosses, any kind of CC against trash)
Also pay attention to positioning, you can avoid a lot of attacks just by not standing in front of an enemy.
Assuming pve, no it is not worth it really. WvW, yes, depending on what build you want to play.