The "best", or strongest, chain I have found so far is the current Rollmaster set that TA Performance is now selling.
The chain now is one that is made in Germany, and only recently is being supplied in the V-6 Buick application.
I have had MANY chain issues over the past few years and have tried all brands of chains.
My car is at the track most weekends during our 10 month race season, so it has many runs each year and sees lots of abuse. I am constantly monitoring wear and durability of these chains.
I have researched and talked with many experts in the field like Cloyes, Ken D, Mike at TA and others to help find the BEST solution. This is still an ongoing project as I search for the ultimate best chain!
Here is one of my unfortunate experiences, and this one is not a Rollmaster: