It's been two plus weeks since the release and now with the favor fix, most people should be gaining favor points to spend. So this begs the question, which are most useful and why choose those items.
Torch Bearer - My top two: The one that allows a -20% ability cooldown to maximize spell casting and the Aml. of Teleportation. I only pick Aml. of Tele. when on large maps or on Dominate mode. The -20% cooldown stacks with the -15% cooldown flags, effectively reducing rain of ice to 9 seconds or so from 14. Pretty thrifty.
Regulus - Swift Anklet. Pair it with the Boots of Speed and he can chase down anyone.