Well I can show you MY Swiss knife build, which I have been using for a gen(I still use it, but slightly different):
Strength: 18
Agility: 21
Hit points: 61
Skills to attributes: 8
Ironflesh: 0
Power Strike: 6
Shield: 3
Athletics: 7
Riding: 0
Horse Archery: 0
Power Draw: 0
Power Throw: 0
Weapon Master: 7
One Handed: 100
Two Handed: 100
Polearm: 100
Archery: 1
Crossbow: +-75
Throwing: 1
This is for Infantry, and it´s really good if you are relatively light armored.
Ofc If you want Riding, 18/18 is better.I WOULD ditch Ironflesh in your build, to get 6 ath, riding and wm + 5 shield, though.
But be prepared to throw away any body armor over 12 weight you used, because with +-100 wpf in a weapon category you will suck with those kinds of armors.The only way to be competetive like that is using light stuff.