Is it just me or does the survival skill make medicine seem obsolete in hardcoe mode and survival is completely useless in regular mode. I was going to use medicine as my 4th skill but the more i read and think about it medicine doesn't seem as useful in hardcoe mode as it was in FO3 and survival isn't necessary unless you plan on doing a lot of exploring which i don't plan on doing until my 2nd play though. I'm not 100% sure of how each skill will work so I guess i will have to wait until i can get a hands on experience to know for sure.
I noticed Medicine has an extremely nice perk for it called Living Anatomy which allows you to see enemy health and damage thresholds. However beyond that i don't think there is such a big use to it. It's probably useful if your character takes chems constantly i suppose. As for survival it seems useful to me regardless if your playing hardcoe or not.