Pot consumption.

felt like adding a few more reasons in red:

Powerguard is gonna save you money and headaches. without powerguard you'll have a hard time at anego/bigfoot/horntail etc MP Recovery is gonna save you money and headaches. [COLOR="red"]at some levels you wont need to even buy mp pots (NOT EVEN IN NLC ) aswell as the fact that mp recovery saved my life a lot at horntail where normal characters cant use heroes will after 1/1, but mp recovery recovers 30mp per 8 seconds i believe and heroes will requires 30mp.. that means at most you'll have to go 7seconds without heroes will and that will in 90% of the cases be short enough to survive since you wont instantly walk into his tail and at least get 1hit from his legs first.. unless you didnt max powerguard ofcourse.
oh and mp recovery is great for auto mp pot lagg, if you're at 0 mp your automp wont always trigger and with mp recovery it wont take long till you get 30mp and then automp will trigger.[/COLOR]
Shout has its uses.
for lower level mobs and for mob control this is a great skill indeed
Rage will 'probably' be increased to 12atk at some point in the future. You will never use Axe with Brandish if you're already able to use Sword with Brandish. Panic and Coma still have marginal use in 4th job.

and please if anybody ever even considers making a hybrid sader..
ppl tend to forget that being a hybrid dk has his purpose, and hybrid saders are just a bad copy of that.