While Samrin and myself seem to spend an unhealthy amount of time throwing rocks at each other we had an interesting discussion on another thread regarding the fighters out of combat abilities or lack thereof outside his 4 skills everyone else gets.
The fighter styles are more or less optional anyway so the manuveurs can stay and you just pick them from a unified list. Basically we turn the styles into somehting similar to the Cleric domains. Each style is a varient class more or less and one can use the 2nd ed kits and 4th ed utility powers maybe tweaked into at wills for inspiration for out of combat abilites.
One does not have to turn the fighter into a skill monkey and some of the OOC things can be small like extra languages or whatever.
For example perhaps a Knight gets a bonus or advanatage on ride and knowlede:heraldry type checks. A swashbuckler could get it on acrobatics and diplomacy. Small mechancal benefits could be inculded as a noble for example can start with extra money or better armor etc. The main focus would be out of combat stuff though.
The fighter must be basic mentality is more of a 3rd ed things as in 3nd ed they got almost as many NWP as everyone else and even in 1st ed they got followers and could raise taxes etc and NWP came along in the Wilderness Survival Guide. The 3rd ed fighter was actually gimped/nerfed from 2nd ed, 4th ed kind of retuned his skills up to something similar to the other classes and added utility powers.