In the laboratory process of isolating Eugenol from cloves via a steam distillation, extraction, drying, and final distillation what would be the best drying agent to use?

Sodium Sulfate (Capacity=high Completeness=low rate=medium)
or Magnesium Sulfate(Capacity=high Completeness=medium rate=rapid)

I'm pretty sure the answer is Sodium Sulfate because that is what we actually use for the lab, but I don't know why its better