I've been rocking the Dead Orbit cloak for a while now, but before I was Level 20 I liked the Not a Fallen Hood. It's not really a cloak, more of a head scarf, but I thought it was cleverly named/described (basically, it's like wearing an orange hat when hunting), so I kept it around. I'm still waiting for my cloak from the Beta, as I recall it was the Dynamo Cloak, though that may have been the other one with the same image that I hated.