Hi,
I understand your point and i think I can agree with it, but I found this definition from the following article:
Quick Primer for Old School Gaming
http://www.lulu.com/items/volu.../1/print/3019374.pdf
(I would like to know How many agree with this opinion?)
In my country old school gamers believe, that in OSR games you have to avoid most of the dangers with small talk with the dm. (with investigation and good decision, to excuse himself from the situation) Because in the d20 there is too much random factor, and if you have to use it it won't be lucky for you.
So in oldschool fighting isn't the best option, but avoid is circumstantial and I am afraid if I play this style, my players will be bored.
There is a good example: Sword and Magic
http://grognardia.blogspot.hu/2008/10/kard-s-mgia.html
In this system the maximum skill value is 10 + ability bonus]. (so it is 13) If you have this maximum you can reach the heroic difficulty with 50% chance, what is not too good for a high level character (up to 10lvl). In lower level the situation is worse. So you can use your luck when you want to succes.
A warrior reach the 10 BAB in 15lvl (There is monster with AC27, but it isn't rare AC above 20)
My question is is it real that oldschool about luck and avoid? Someone told, that in the begining the main goal was the treasure (and xp if you exchange it with trasure), not beat the enemy and solve the problem (save the princess eg.).