Regarding quirky steering with auto lockers: I'm from the NE, we get snow regularly. Yes, when in 4wd w/auto lockers on snow and ice, things can get interesting. Power going to all 4 tires on the slippery surface makes it interesting.
I mean if its snowing enough to need 4wd you should be going real slow to begin with. You just need to pay attention. Slow down on turns, try not to accelerate on the turn, etc...
Have I driven in snow with my auto's? Sure. In traffic on my small town roads through town it sucked, but was manageable.
I wouldn't want to be on big roads or going over certain speeds though. If I'm on the road in the winter with snow, I usually drive my tow vehicle or my work car. Jeep stays in the garage.
Trail wise, they are awesome. Haven't let me down yet. Occasionally I do experience some rear push through some tight turns that make me think that a rear selectable would've been a good move. but it doesn't happen enough.
Streetwise, once in a blue moon they'll bang or pop as they bind and release on a really tight turn, but that's the only thing I could think of that one might call a negative.
I run Yukon gears and Yukon Grizzly lockers. I've ran other gears and so have guys in my group. Nothing bad to say about G2 or any others really.