I've got 8k+ WvW kills and my build is fully WvW-centric. I've played many different builds (i've got full exotic condition set as well) but this is the one I think stands up the best in WvW.
: I use a mix of Bersker's (weapons/jewlery/chest/legs) with the rest Valkyrie and my fabulous ascendant quiver and a karka earring.
Sigil of bloodlust on the Shortbow (incredibly good and the stacks come faster than you'd think), Sigil of battle on longbow (fast weapon swapping means the 3 stacks of might have a very high uptime)
Superior rune of Divinity. This build benefits from all stats and divinity runes give the most bang for your buck imo. The "+10 to all stats" also includes +healing and +condi damage.
Curry (100prec 10% crit dmg) and sharpening stones
/Sigh no really great options here for WvW. I usually go 1 canine 1 cat for this build.