Feats:
1 - Two Handed Fighting
3 - Power Attack
6 - Cleave
9 - Improved critical: Slashing
12 - Improved Two Handed Fighting
15 - Greater Two Handed Fighting
18 - Toughness or Stunning Blow - Depends on your focus. Toughness is not needed for 95% of content.. But for the endgame raids, you will want it if you are gona be the main tank. Stunning Blow is an awesome feat for clearing trash if your a good twitch skilled player, it will really speed up many quests. Altho I prefer stunning blow and find it extremely useful in the endgame, some players with prefer the hitpoints instead. Personal preference really, either wll work.