So afaik, in Legion PvP gear would work like this:

The only thing to matter (in instanced PvP) was ilvl. This meant that no matter what stats the gear had, you would always choose the item with the highest ilvl, simply because nothing else mattered. Also, if you were ilvl 900 and you were fighting against an player with ilvl 950, you were basically at a 5% disadvantage in terms of damage and health. Correct me if I am wrong, but this is how I believe the system worked.

Since I couldn't find a blue post on how gear in PvP is going to work in BFA, I was hoping somebody here might know. Can someone explain to me how it works in BFA?