Determination vs Critical Hit for SAM

After 2 weeks of Stormblood now I think a fair amount of people has gotten around to playing with melding materia to their gear. Has anyone found yet if determination is indeed better than just melding critical hit into all gear?

For now, melding Vs is very cheap considering the story stockpiles you with these, but I would like to know for when the time comes to meld those rare VIs into my gear.

Materia VI rare? Lol.

As long as we don't have stat weights or anyone gathering hours of hours data it's just guessing.

DET is properly again with dimishing returns, so idk if I would stack it after reaching a certain level (idk that level xD).