Here are a few tricks of the trade I've found out.
15, 17, and 21. Those are the magic numbers for stats; any fighter who starts with a stat (except Con and Size) at any of those numbers will have more beginning skills than normal. Stats: The stats in order of importance with regard to skills, most to least, are wit, will, deftness, speed, and strength, with con giving you no skills, just hit points and endurance. The higher you can start any of these, especially the first three, the more skilled your fighter will be. Logically, therefore, what you really want is a fighter who has wit, will, and deftness at 21. This will be a GOD! And probably go out and get killed immediately due to low con...
Raising stats: Care must be taken in doing this. All fighters start out with the ability to learn 20 skills in the categories of Defense, Parry, Riposte, Attack, Decisiveness, and Initiative. When you learn all 120 skills, you've maxed out. You can get skills though normal learns, or by raising stats; however, if you raise stats BEFORE you max out (except for Con), anything gained will count as one of the 20. This is called "burning" skills. If, on the other hand, you wait until you've maxed out, then raising stats will add those skills to the ones you've learned, enabling you to exceed your limits. But raising stats will give an immediate boost to your abilities. It's a question of short term vs. long term gain, you see.
And aiming at vital areas - head, chest, and abdomen - will increase your chances of getting kills. And being bloodfeuded, and maybe getting your fighter killed in return. Keep in mind that what you send forth will come back to you. Sometimes redoubled.
-Roku