I must be one of the few people that rarely has an issue with armor lock. Yeah, it was annoying for three weeks when the game first came out, then again when the holiday season hit. Ever since, I haven't had any rage inducing moments against armor lock.
I'm kinda stuck in a gray spot. See, I've been playing since CE came out, and I absolutely love the old school feel of Halo multiplayer. But with Reach, seeing as it is a stand alone (of sorts) from the trilogy, it should have a different feel than the trilogy. And to be honest, at first when I sprinted I felt like it was CoD, but if anything I've realized that it only helps quicken the pace of the game. And armor lock lasts for a whole five seconds, that isn't enough to drag the game out as everyone here says it does. If anything, that just saves you five seconds of each person dancing around one another trying to get that last hit and gives each player a moment to reset themselves and reevaluate the tactics of the given situation.
So yes, I admit it, I like armor abilities. That being said, I feel they should stay in Reach and away from the MC.