I' m guessing, based on appearance, that the akoya is the top strand, the metallic white is the right lower strand and the Freshadama the left lower strand.
Of the three I prefer the metallic white (right) for its high luster, and after that that Freshadama (left) for its whiteness and roundness. The akoya strand pictured (top) doesn't have the sharp luster akoyas are capable of having, and is a bit too cream colored for my taste personally.
However, the real question is what do you prefer:
Roundness? Choose the akoya first, Freshadama 2nd, metallic FWP last
Luster? Metallic FWP 1st, Freshadama 2nd, that particular akoya last
Cream/ivory color vs. white? That Freshadama is clearly whiter than the other two.
Pearls do not tend to hold their value long term, if it's a question of resale.
For durability, there is nothing like all-nacre FWP, and either of the FW strands above would beat the akoya as there is no bead inside. That said, if you take care of the akoyas, wipe off sweat and skin oils after wearing them, and don't wear them all day every day, they should last many years.
If it's a vintage akoya strand (judging by the color, which seems a bit yellowed) the nacre may be thick compared to strands sold today.