During the early levels, you should spec retribution for higher melee damage. Use a 2-hand weapon with good DPS, and wear mail armor (plate after level 40) with Strength and Stamina. You should also keep a shield and a fast 1-hand weapon in the bag for special situations. Be sure to get Improved Judgements at 14-5, Seal of Command at 20, Art of War and Judgements of the Wise at 40-44, and Crusader Strike at 50. The other talents should be pretty self-explanatory (more damage is good).