The new loot is fucking ridic; I'm finding shit at level 20 my max level demon hunter would be happy to wear. On top of that, the legendaries are more reminiscent of diablo 2; they have a bunch of really awesome additional things - +health whenever I spent wrath on the crusader, + armor for the same amount of gold I just picked up as a temp buff, an AE dmg spell whenever I am surrounded by 3 or more mobs.
This is just beta, but the crusader class is a ridiculous amount of fun and I am having the old tinglies watching this loot drop. It doesn't have to be amazing, but flavor effects are really making me just want to keep playing, despite knowing my crusader will get wiped after beta.
With the new expansion out, probably easier loot wise to wait, though crafting jewelry comes from quests you can get now, so...sort of a toss up.
I stopped leveling my alts in D3 but I am so all in now when ROS launches.