No one will ever tell you an autolocker is better than an ARB.
Saying that I'm a cheap ass and put an autolocker in the front of my DD, it works well, as with every lockrite/aussie owner I know we all wish we had oodles of cash to put ARB gear in.
My housemate had one in the rear of his 75 series ute, we live in the city and his girlfriend drives it quite agressivly and would chirp the tyres a lot, it also decreased the turning circle a little meaning 3 point turns everywhere suburban. They decided to switch to an ARB.
We put the old autolocker in the rear of a mates 45 series troopy, he is very happy with it and it works well.
I prefer mine in the front, none of dramas of an all time locked rear around town, yes you have to adjust your driving style when in 4wd but I've never had grief from it. In soft stuff you also pull yourself up from the front rather than push yourself with it in the rear traction.
You can also do a 2wd low range mod to make rock work easier unlocking the front (they are really auto-unlockers that release when theres no drive), if you are that way inclined.
My best advice is if you really want to keep your truck for a while just buy 2 arb airlockers and you'll never regret it

and buy 2 for me while yer there
If you need to rebuild your diff when you put the auto locker in you are probably 2/3rds into the cost of the ARB already.
oh and I'm glad I don't live near the snow....
