Defiant gear is approximately one million bajillion thousand times better than anything a lvl 45-50 SK could farm as a zone specific drop.
Defiant gear essentially made the sub-70 zones obsolete. Yeah, there's a lot of "content" but it's basically worthless and you're better served finding a nice safe xp grind spot and chewing out levels than to travel anywhere and look for named mobs, etc.
[Edit: An exception to my above post would be to explore the
Silverwing and
Teek quests for some non-visible gear that the Defiant stuff doesn't cover. Though the Silverwing items around your level (belt/shoulder/back) are supplanted by the Teek rewards]
Edited, Sep 5th 2013 6:55pm by Jophiel