Thinking of starting tanking, need advice.

[Claire_Pendragon]

I feel thats a bit of an oversimplification but we're comparing DRK complexity to PLD. What you've said there is already vastly more complex than PLD which is litterally; You learn most of your rotation by the time you hit lvl 60, and the only addition going up to 70 is holy spirit spam. PLD is still objectively easier in every way.

due to my post going boom, and too lazy to repeat it, PLD plays the same way DRK does with watching MP, as it has to try to get its MP to above 80%, while keeping it below 90%, as to maintain DPS, and switch between magic of phsyical dps buffs.
IMO PLD edges out DRK slightly in difficulty.
Its not by a lot, but enough to say DRK is the easier one.