Watch dogs looks good but the other game looks pants IMO
You must have been a zookeeper in a former life Swanny, because you are definitely having a giraffe.
I've never played Halo but there's no doubt that decent first person sci fi shooters have broad appeal IF you get the backstory right, and it looks like this has it all. Shooting, looting, crafting and online co-op with open world public events? Could be a classic in waiting if Bungie get the feel right, and lets be honest, they have the pedigree.
You sure you're not just being sci-fi-ist Leiutenant?