In reply to arctic_hobo:
I think it come down to the the application really: if there the chance of cacthing the gate is high, autolock is probably not the way to go. (any the fear of this happening is proably one of the reasons that they haven't caught on). If the chance of "forgeting" to screw the gate closed is high, I'd go with Autolock.
Personally I only have one auto lock vs 4 screwgates, all of which I use to rig belays:
My screwgates each go onto a peice of gear, and the rope is looped back and clove hitched onto my HMS-autolock. I'm happy with this set up as:
If I forget to screw up a screw gate I always have a back up.
If I catch the auto gate, It's unlikely to come off my harness as it already loaded, but it the worst did happen, I'm still tied into the belay system with a figure 8 directly onto my harness, and there's no way my beefy HMS will fit though my screwgates.