When I started building my tool set, Craftsman was of adequate quality and very good availability. I found over the last 20 years or so that their quality dropped to roughly the level of HF and, since Sears started closing their stores, they are hard to find, too.
I started using Snap-On when a friend demonstrated the difference in how the sockets from Snap-On and Craftsman fit a bolt or nut. I probably rounded-off countless nuts & bolts due to the loose fit of my Craftsman sockets.