General description of character statistics (in short stats).
Game already marks important stats for each class with * (either silver or gold) so I won't do the same thing again below.
Fundamental primary gear based stats, You can't change those. It is only possible to raise them through gear upgrade process.
Vigor
It affects damage or healing done. If You have choice between two gear parts choose one with higher vigor. This often happens when new season arrives and old gear parts (for example fabled quality) gets replaced by newer one. In this case it is usually better to equip gear piece with more vigor on it even if secondary stats are higher on older one.
Stamina
Simply speaking it affects You base health pool before it gets affected by class bonuses. Higher stamina means higher health which also means You can live longer.
Gear parts also offer different
resistances. It is either physical resistance or set of elemental+natural+divine ones. I'm usually upgrading gear parts which grants my character more physical resistances starting from ones which give the highest bonus (like chest and pants).
Main offensive stats (tweak-able, You can balance them to some extent):
Proficiency
It affects Your damage and healing done. It is constant and indifferent to damage type. It will work the same way regardless of damage type so if You are not sure what to take it is safe choice.
Determination
It is a bit more effective than Proficiency in terms of damage increase per point invested but requires few hits to build up determination bar to reach 100%- this is also the point where it gives higher damage/healing than similar amount of proficiency points.
Brutality
In short the lower target health bar is the higher damage boost it gives. Not very useful for PvE imho.
Main defensive stats:
Vitality
It simply multiplier of basic health You get from stamina. In my build it is not very important since You will have other stats that will compensate lower Vitality value.
Willpower
Completely useless in PvE. Never invest points into it. You can get extra willpower points from rubbies and from investing points into physical/elemental/natural/holy protection.
Bloodlust
Basically it allows You to receive healing based on % of damage You deal. VERY useful for PvE.
Secondary stats:
With some exception raising those beyond 250 is pointless (that is soft cap limit beyond which more invested points give very small gain).
The only exception are class related secondary stats.
Critical Chance:
Percentage change of inflicting critical hit/healing. Useless to warrior since with proper usage warrior skills are either 100% crit or 50% crit.
Critical damage:
VERY important for warrior. Increases damage from critical hit.
Double attack:
Just as name suggest it is percentage chance of delivering 2nd hit which deals 50% of main hit. It also works for class resources so if Double Attack occurs with for example fracture (which grants 25 CA) You will get another 25CA from it. It is useful but You can forget about it on warrior.
Physical/Holy/Elemental/Natural Damage:
It is slightly more efficient in increasing damage than Proficiency but it is limited to only one damage type. In my build You do not need it.
Swiftness:
Reduces cool down of skills and also skill channeling time. Not useful in dps build so forget about it. Not to mention You can see "Cooldown of this ability is not reduced by swiftness" in skill description quite often in warrior skills.
Survivability:
Makes shields better and increases healing received. It won't affect healing from warrior skills but Your character will be lower "heals sink" for the healer in raid/party.
Caution:
When health drops below 40% this skill will add another layer of protection to character reducing damage received by certain amount listed in skill (nearly 40% at 250 skill points).
Physical/Elemental/Natural/Holy Protection:
Reduces damage from certain damage types. Priority is physical for a warrior.
Concentration:
Grants shield based on percentage of damage dealt. VERY usefull for warrior.
So what to take from above stats? Below is my own personal algorithm for PvE warrior stats:
1. Make sure Critical Damage is between 250-300.
2. Distribute remaining points evenly between Proficiency and Determination. If You have both of them at 500 consider adding some into Brutality or Double Attack.
3. Raise 1st Concentration to 250, then Caution to 250, after that Bloodlust to 400-500. If You still have points remaining consider raising Survivability to 250 (it will make concentration better and increase healing received from other players in party)- do not forget You have bonus stats to it from rubbies in my build.