Sunsinger gloves are way better then both of the Warlock BP's. You are going to spec into viking funeral anyway, so it lasting longer is a huge plus.
In raids you will only use radiance to rez yourself, so having extended radiance isn't even an option.
Warlock BPs both have useless effects imo. You wont use either of them in raiding, or pretty much anything else.
Also with the free amo glitch, those modifiers are barely needed.
I would rate it Helm> Gloves>BP's
The clip size is terrible and it got nerfed since beta pics of it were taken and no longer deals void damage
No primary weapon does elemental damage in live. Maybe later they will, but I've yet to see one that can.
I assume they did that to keep the primary weapons from just destroying Nightfalls etc
I'm like one defense upgrade from 29 right now, hoping for some legendary drops this weekend that I can dissemble.
At that point you need raid gear to reach 30.