I actually like a round of elite slayer every now and then, but I agree armor lock is overpowered.
Hell, your shield will even regenerate in armor lock.
I was wondering about that, does it only regenerate while armor locking for elites? I'm pretty sure it doesn't regenerate for spartans while locking (unlike the beta).
I still can't figure out armor lock. It's frackin useless for me. I'll take a drop shield any day.
Nah, armor lock is easily the most underrated armor ability. The problem is it is hard to use, unlike say sprint or jetpacking, effective use of it requires good timing and some degree of inventiveness.
I actually find it extremely versatile, a bit like sprint. The only problem for me is that I use BJ which makes it very hard to go into armor lock quickly (you have to hit x) and also for aiming melees when coming out of armor lock. The new Razer controller will fix that problem though.
But otherwise armor lock is very effective and destroying vehicles trying to splatter you and can let you survive Scorpion, Revenant, Wraith weapon fire (I was playing on Paradiso the other day and a Scorpion got distracted trying to kill me because I kept armor locking it's shots and eventually one of my teammates hijacked it).
Also it lets you survive and even turn the tables against a whole range of power weapons - shotgun, sword, rocket launcher, plasma launcher, grenade launcher, grav hammer, concussion rifle basically everything except the sniper rifle.
You can deflect rockets back at the user or block a hammer strike and then melee him back (instantly killing him).
If you're really good with the timing even in normal CQC encounters when the other player goes in for the melee you can armor lock when his melee lands, EMPing him and allowing you to kill him instantly with a return strike.
Then of course armor lock lets you survive stuck plasma grenades or grenade spam in enclosed spaces, which is extremely useful seeing how powerful nades are in Reach.
There's lots of other encounter specific uses for it as well - like one time I was being attacked by two players from the other team and so armor locked, they came in close waiting for the kill, I popped out early, threw a plasma grenade on the floor and went back in lock before they had time to react and got a double kill.