Snow chains

Diamond pattern have some extra sideways grip. If you really want the best set-up for driving then put them on both axles. This gives you good braking on all wheels and better directional control.

Just read an article in one of the latest 4wd magazines about snow chains on new 4wds with ABS and/or traction control.
Evidently not recommended on the front or both axles as it can upset the sensors. Suggest you double check the vehicle manual.

KNOIG brand I think are the best. They seem to have the better hookup system, and a very good tension chain.

The one size in Diamond pattern, will do a large range of tyre sizes, from 10R 15 up to and including 265 75 16.

GN

There's an increasing number of vehicles coming on the market these days which don't offer much clearance around the upper suspension joint. Chains fitted to these vehicles can be prone to "throwing" a chain and if they fall in, can be very hard on ABS sensors and brake pipes. Even steering knuckles were a bit of a problem on some solid front-end vehicles with wide tyres fitted.

If they can only be fitted to one end, I always preferred the rear, reason being heading down-hill it's nice to keep the blunt-end at the back. Heading up-hill there was an advantage from weight transfer.

There is room for lotsa discussion on which end is "right" but as in any discussion, each to their own.

We prefer to stay away from the mud and snow these days.