This is in no way helpful, as of the knives you posted, I only own the Bradford, but I can tell you that the Bradfords are excellent knives, especially the updated Guardian 3 as you've shown here where there's now a tiny "lip" instead of the finger choil terminating in the heel of the blade. I've carried one as my EDC knife for years, and have been bit a couple times by it.
Also, out of the first three you posted, the Ursus Cub is probably the one I'd pick, since its handle seems the most neutral and handfilling so it would be comfortable for actual work. Both Viper and White Rivr make excellent knives so you can't go wrong, but for me, it'd be the Cub.