I'm surprised this issue hasn't been addressed yet (if it has, I've yet to find it), but here goes.
I've noticed that if you were to purchase the Knight's Helm from Droknar's Forge for 1.5k, it'll have a Knight's Helm 80 armor with +1 Strength on it. Yet, if you were to create a warrior in PvP-only, the Knight's Helm 80 armor lacks the +1 Strength modifier.
Just wondering, is Anet gonna fix this?
PvP Knight's Helm lacks Strength +1
InvaderGIR