Forte

Forte is a very weird stat. It gives its percentage to 3 of your other stats. In that regard, it transforms main ratings into percent bonuses that can help you boost your stats over 50%. But it is totally meaningless to give percentage bonuses to Forte when you can give the bonuses directly to the stats you are interested in. Except for Healers, because the main stat that is boosted by Forte for them is Divinity / Soulweave Regeneration, which cannot be boosted any other way.

The percentage of Forte is split : half of it goes to Power, Defense, or Divinity/Soulweave Regeneration, depending on your role (Damage Dealer, Tank, or Healer). A quarter of your Forte goes to an offensive stat, the last quarter goes to a defensive stat. The offensive and defensive stats boosted by Forte depend on your class.

50% of the Forte Percentage goes to a main stat which depends on ypur Role

Role	Stat
Damage Dealer	Power
Tank	Defense
Healer	Divnity / Soulwave / Performance Regeneration

25% of the Forte Percentage goes to an Offensive and a Defensive stat which depends on your Class

Class	Offensive Stat	Defensive Stat
Barbarian	Critical Severity	Awareness
Bard	Critical Severity	Deflect Severity
Cleric	Critical Severity	Deflect
Fighter	Accuracy	Critical Avoidance
Paladin	Critical Strike	Deflect Severity
Ranger	Accuracy	Deflect
Rogue	Combat Advantage	Deflect Severity
Warlock	Critical Strike	Awareness
Wizard	Combat Advantage	Critical Avoidance

Because of the disparity, and the fact that stats are not equal, Forte gives an advantage to Warlocks, Barbarians (due to Awareness), Rogues and Wizards (due to Combat Advantage). Gearing can reduce the gap, and there may be bigger disparities between classes with their powers in the first place, but the difference being noticeable.