Yes, Im reading some forums and "BiS-List Heroic" and 50% of them say the Leggs from Lei Shen is the best option, the rest like warcrafthunterhalls.com says the Helm from Council of Elders. Assuming u have access for both loot on heroic, which one is better? I thoung the legs.
Legs, but plan to what you got access to. I don't see my guild killing Lei Shen HC before next raiding tier becomes available (unless heavy nerfs come), so I simply pretend those legs don't exist when I plan my gear.
I think both chest (Aberrant Chestguard) and helm (Gaze of Gara'jal) are good offsets for guilds that haven't killed heroic Lei Shen yet. Not much point in sticking with a strict BIS list if your guild isn't killing Lei Shen and Ra-den.