Agility is the most wanted stat for [tag-tec]Rogues[/tag-tec] and [tag-tec]Hunters[/tag-tec], but a few other classes have some degree of use for agility as well. So what does a point of Agility get you, if you’re Rogue? Here are some numbers, taken from WoWwiki.
At all levels, 1pt of Agility (for Rogues, [tag-tec]Warriors[/tag-tec], and Hunters) = 1 Ranged Attack Power (AP)
At all levels, 1pt of Agility (for Rogues, Cat Druids, and Hunters (not Warriors)) = 1 Melee Attack Power (AP)
Other classes get no benefit to their Attack Power from Agility.
At all levels, for anyone, 1 point of Agility = 2 armor points
It also adds to crit rating and defense, but in a variable amount.
At level 70, Rogues and Hunters need 40 agility to gain 1% crit chance, Warriors need 33, and everyone else needs 25.
For their Dodge chance, druids need 14.7, rogues need 20, most everyone else needs 25, and hunters need 26.5.
Gear and Agility
For comparing different items of gear there is the Agility Equivalent Points (AEP) system. This attempts to take any of the value any particular piece of gear might have and give it a value in AEP. As I understand this, you can now campare item A (with X Ag and whatever other goodies) with item B (having Y agility and whatever bonuses.) So each point of Agility, Stamina, Armor, Hit Rating, Attack Power, etc. will all have AEPs.
Of course, how many AEP each item is worth will vary depending on whether you’re leveling, grinding, PvPing, or Raiding. For example, Resiliance gets a fairly high rating in PvP, but very little for raiding.
Talent builds will change the values as will exactly how you play your characters.
Here’s an example set of values, for PvE (Raids,) from the Pawn Addon Forum where it’s discussed in more detail:
For PvP one might use these values:
Note the increase in the value of Stam for PvP and the addition of resiliance.
Here’s an example: If we take the Gladiator’s Leather Helm, one the the PvP items, we can take it’s numbers and get an AEP value: 34 (Ag) + 53 (Stm) + 8 (Red Socket) + 13 (Crit) + 23 (res) + 18 (1/2 AP) = 149.
You’ll have to come up with a value for armor, the meta socket, and the set bonuses, but it’s a start.
The Elitist Jerks forum has a long discussion on how it all works, oriented towards Hunters, but generally useful for those of you who are more into the exact calculations.
So if you’re looking at nice items from raiding, PvP, or crafting you can use this system to compare them and make a reasonable estimate of which is best.
More on AEP:
Rogues: AEP (MAEP) and you! – Around May of 2005, Ming started a thread on the Rogue forums where he was devising an Agility comparison system for comparing gear using the formula 10 Agility = 10 Stamina = 20 Strength = 20 Attack Power = 1% Crit. …