Cloak of Oblivion
Cloak of the Sojourn is best imho
The DO one looks better imo.
Neither. Wearing faction cloaks (or any class item for that matter) makes you look like you're sponsored by them kinda like how there's stickers all over a race car. I like DO and all, but if I'm going to represent them, I'll do it with a shader and not that silly-ass symbol that is emblazoned on all of their gear.