Which is better, AC 17 and disadvantage on attacks against you, or AC 19?

I am playing in an Epic tier PvP. I have the option of a +2 studded leather, with max Dex, for AC 19, or normal studded leather and a cloak of displacement. Since everybody has +3 weapons, all the attack modifiers will be +14.

I am aware of this question (Mathematically, is a +2 bonus to AC better than attackers having disadvantage?), but I am looking for even more specific to my situation.

The PvP is a free for all. I have no other consistent sources of disadvantage.