PLD is, and forever will be, the ideal MT. Don't mistake existing content for challenging content. Currently WAR is probably the best MT, but that's not due to an underlying kit that heavily favors MT (Nor is it due to extreme unbalance as I'm sure many will suggest), but rather because the current content is so unbelievably easy that all tanks are equally capable of MT and so as a result, "the best" defaults to the tank who can output the highest numbers (WAR). Most Savage statics will want a PLD as their MT initially and, by my guess, in the long run. If you're looking to MT then PLD is the right choice for you in challenging content. If you're not talking about challenging content it's completely irrelevant.

I'm not sure why so many people here are suggesting PLD is bad. Their mitigation is unparalleled, they have the only valuable "ultimate" tank ability, and they have extremely good utility. I see no scenario where either a DRK or WAR would perform better as a traditional tank than a PLD, even when taking predominantly magic damage. That said, when players are over-geared, content is under-tuned or easy, or when optimizing damage output over mitigation, then yes, PLD falls off, but as a strict mitigation tank there's nothing that beats PLD.