I like Ion Judgement because the jump range is quite large, so it almost always hits everything.
I went down the Radial Rebirth path for Destiny to plug /Shield's biggest hole, which is the lack of a heal, and it plugs that hole in spades.
IDF Lore is nice because if I can't have IDF costume pieces myself, at least I can summon pets to look at 
Reactive Interface is the only option that boosts damage, so I took that and went down the Radial branch for the DoT.
So, what are people choosing for their new slots? I think I'm going to take Void for my Judgment slot, but I haven't really looked over the other ones yet.