Which is better?
no idea what you want to achieve.
if you aim into damage only. power, precision, ferocity are all relate.
There isn’t any real hierarchy to what is best in general. There are breakover points. When building up stats from zero, power is the first thing you need. Then comes precision until you hit somewhere in the mid to high critical chance ratings. After that Ferocity is king. Beyond that even, different builds need different levels of each of these to reach maximum efficiency as far as dps goes. The calculations can get very complex.
Here are some relevant links:
http://wiki.guildwars2.com/wiki/Damage_calculation
http://wiki.guildwars2.com/wiki/Critical
if you want high outcome damage.
here the number you need to aim for:
Power 2.6k +
Precision 60%+
Ferocity 220%+
if your character can get into these number. it will be really high damage
Average damage = Base damage * ( 1 + Critical Chance * ( Critical Damage – 1 ) )
For example with this stat:
Power 2.6k +
Precision 60%+
Ferocity 220%+
Avarage damage = 2600*(1+0,6*(2,2-1)) = 4472
MMMhhhhhh and how should apply this: Damage increase: 10%
Extra damage multipliers are multiplied on individually. Say you have x damage before Sigil of force and Sigil of Night. The formula is as follows
Total damage = x*1.1*1.05
Edit: this applies for any instance of x% more damage, not just sigils.
With my example i should have:
Total damage = 4472*1.1*1.05= 5165
Exact? Than the best one is Damage increase, no?
This isn’t exact. You also need to take into account weapon damage and target’s armor.
Damage increase is important, but not if you don’t have a good Power/Precision /Ferocity stat base to take advantage of it.
It’s like making a DPS cake, it can be good without one of these things, but it won’t be great unless you have them all.