Which one I bought would depend upon intended use. You say "shooter."
If you're planning to shoot thousands of rounds annually, hot loads, lots of rapid fire double action work, I'd go with the Ruger.
But if you're simply saying "shooter" as opposed to a safe queen, if you're like 99.9% of the rest of us gun owners, and you'll likely only shoot it a couple of hundred rounds a month, if that, I'd go with the Smith.
I own a 66-1. I stay away from lightweight, high velocity bullets. There have been issues with 125 grain magnum loads. I use 158 grain bullets loaded to 38 special velocities. That's also something you don't have to worry about with the Ruger.