[Rupert]

I think any Man with enough Numenorean blood in their lineage for it to be more than a boast should have +1 ST and possibly +1 HT as well - they are supposed to be bigger and have greater endurance than lesser Men.

A problem with taking the characters in The Hobbit and The Lord of the Rings as guides is that almost everyone we see in detail is nobility, royalty, or at the very least gentry related to nobility (or the local equivalent). 1-2 of the Hobbits weren't, and Gollum wasn't. I think everyone else was. Thus they have the best upbringing, and in Middle Earth, the best inheritance.