On FV (where everything is pretty much tradable) elegant defiant is pretty much the standard choice 70-75.
At 71 my necro started wearing glowing gossamer
which is from this quest
. Last time I priced the quest components on a regular server they were way more than elegant defiant price-wise though.
I suppose Energeiac Armor
is an option but I don't really see it beating the defiant, especially considering the effort involved.
There's also spotty itemization like world drops
that are worth considering, especially if tradable on your server. Spotty in that you may or may not be playing a class that the drop is cheaply available or desirable.
I'd love to hear some other options. Once you hit the 80s there's a lot more (I have 1/2 my necros bank full of req level 80/81/82 armor, I have nothing for 76-79).