What locker do you recomend for me?

I have a 98 taco regular cab. Only 'mods' are 31 inch Kuhmo M/T's and a lot of CB and Scanner stuff. I wheel at least once a week but clearance has never been a big problem. Traction, on the other hand, is. So i'm in the market for a rear locker. I was thinking Aussi or Lockrite for a while because they're cheap. I drive quite a bit on the highway and we get a ton of snow up here, and I've heard that being permanently locked in will be detrimental to both of those driving conditions. It it that bad being fully locked for daily driving and during the winter? If so, what do yall recomend?