btggraphix --
Whether you get the triple or dually chains depends on how you are going to use them. It doesn't take much more time to put them on than a single on the outside.
I started out with a single set of crossbar reinforced linked chains as they provided better traction in the deep wet snow in the Sierra and when it got icy. I'd seen lots of people not make it up steep icy hills using other types of chains.
On the rare occasions that Cal-Trans made me put on chains, I'd put them on the front when going up a banked, curvy snow covered road to a ski hill. Sometimes they would insist that they go on the rear.
Took a little more time to link the inside portion together when on the rear than just turning the front wheel. I have a piece of wood (two pieces of 2x8 glued together with a ramp sawn on one end, 12" long) that I drive up onto with the inner wheel when I put them on the rear. After getting stuck in a Sno-Park that Cal-trans didn't have time to get to (since they lost control of the highway) I got a second set of chains, so I wouldn't have to shovel as much. When stuck with only one set I had more success at getting out with them on the front.
Even with chains on the front and outer rear I still got stuck in the Sno-park as there were several storms that came through and dumped 100" in 4 days. Part of the problem was with the wet snow, I was packing snow under the inner rear as the outer chained rear was digging down to get traction. It just dug a hole vs. pushing me ahead.
Not to be done in, I got a pair of the cross bar reinforced triple chains. With these chains on the rear and ones on the front, the truck would chew throught the snow, hook up and the truck would porpoise forward and then chew away again to get me out of the Sno-Park without too much shoveling. The only down side to the triple chain is that they are heavy. I have a piece of 2x6 that fits under both wheels that I drive up on. Throw the chains over the top, slide under and link the inner and then outer, then roll forward off the block and link the middle. Then tighten the cams, roll back and forth, tighten the remaining ones. Add spring type chain tightener (helps make slack to tighten the last cam).
Chains were pre-fitted in a nice warm garage, so no links to wire off, no guessing which to link to when they are actually needed.
Triples were smoother than ones just on the outer rear on bare road or black ice, but most of the time when they lost control of the road, there would be more than four inches of packed snow on the road and it was smooth either way.
To put it all in perspective with only the studded snow Nokian tires on all six wheels, the TC in the back and in 4WD, I could go where I wanted to when the snow was less than 10".
Then I got smarter, made friends with the guys who plowed the ski area parking lot and they said no issues with me parking there. Even when they lost control of the parking lot, if they plowed me in, they would happily dig me out later. Haven't had to use triples or chains since.