Warrior Elite spec exotics

Just unlocked both the Berserker and the Spellbreaker elite specs on my war.

Got the exotics associated with those specs and now I am unsure what to do with them.Berserker helm and torch, quite ironically, cannot have berserker stats. Choice is between sentinel, sinister and vigilant. I suppose sinister is best because berserkers are designed around condi, right?

What about spellbreaker dagger and shoulder though? Only available options are assassin, knight and valkyrie, so I don't know if it won't be better to salvage them and buy berserker items?Can I find use for those stats in any aspect of the game? WvW maybe?

Also, I am quite disappointed with power berserker and core warriors in open world. They can deal good damage in melee, but compared to many other professions survivability is lacking. Many of the harder hitting enemies, especially those in HPs are hard to solo as a warrior and the ranged options(longbow) are quite lacklustre. Kiting as a warrior is awful.How more survivable is spellbreaker in open world? Is it THE spec for soloing elite opponents? Can it actually take a hit and outlast something with lots of health? I find it annoying to play a profession which is supposed to excel in melee, but cannot survive that well in it.

salvage them, you can just transmute the skin to something else

I've never actually used any of the exotics you get when unlocking a specialisation. I don't think they're intended for permanent use - just a stop-gap in case you want to try the new skills right away. It's assumed you'll upgrade on your own afterward I think.