I like KMC's 9 and 10 speed chains because of the way they are riveted. I've used SRAM in the past without issue. I bought both these brands because of the easy-to-use joining link, which has been made even easier with acquisition of a pair of link pliers.

I will use Shimano chains if the price is right for the model I am after, but refuse to use their rivet system to join them, and opt instead for a KMC joiner link.

I strongly believe using a rivet to join a chain, whether it is a Shimano or some other brand, is what leads to many chain failures, likely because it hasn't been inserted properly and backed off as in the instructions. I just find it so inconvenient when putting a chain on the bike. It's probably why I won't ever get a job at a bike shop.

I think KMC 9 and 10 speed chains can't be joined again using just the rivet because of how they are designed.