You can see a side by side comparison of the pieces here: http://forum.square-enix.com/ffxiv/t...ear-comparison

The first piece of DL gear any SCH should get is the DL pants, simply because of the 27 CRIT (good buffs all around but the CRIT makes the piece). The pants should be one of the last upgrades to Mythic set due to mythology's very slow acquisition process. DL pants are perfectly fine. When comparing the two themselves however, you only lose 3 CRIT, but gain 9 more VIT, MND and double your PIE. It is an upgrade, but not near as drastic as many of the other pieces. That is the unfortunate side effect to mythic upgrades is simply the time it takes to get even one piece.