Just realize that of what you listed, the WSMs will be in the 8400, and that is a completely different rifle from the 84L or certainly 84M. I prefer the 84s by a large margin. Purely personal preference though. While my 84M is a 338 Federal, and I love it, I realize it's a niche cartridge. I simply can't see a reason to not like a .308 in an 84M. I will say, if I get another Montana, it will be an 84L in 280ai. But my 338 Fed isn't going anywhere! Not that I have vast experience, but I really have a hard time imagining a better hunting rifle than a Montana.