How do Wesleyan theologians define omnibenevolence? The term omnibenevolance is not used in my quarter of Protestantism, and after reading the Wikipedia article it is entirely unclear to me what the term means and how it relates to the God of Christianity. I quote:


  The word "omnibenevolence" may be interpreted to mean perfectly just, all-loving, fully merciful, or any number of other qualities, depending on precisely how "good" is understood. As such, there is little agreement over how an "omnibenevolent" being would behave.


After stating that the term is basically meaningless, it goes on to note that the attribute is considered by some to be a "an essential foundation in traditional Christianity", then calls out a specific group as depending on this attribute for their other ideas about God's character.


  Theologians in the Wesleyan Christian tradition argue that omnibenevolence is God's primary attribute.


My question is two-fold.


First, is this claim about it being a primary-attribute true or those quotes a poor representation of 'traditional' Christianity?
Secondly, how is this attribute defined in light of the common usage of the word being so ambiguous?


Answers may be specific to the Wesleyan tradition or delineated as belonging to any other tradition that holds this as an important attribute.
As I understand it, this needs to be taken in the context of Arminian/Calvinist debate. Calvin held that God's primary attribute was his sovereignty. All other attributes of God, including his love, must be understood in light of his sovereignty. From this idea springs the entire TULIP paradigm.

Arminius (and Wesley following him) disagreed and held that God's primary attribute was his goodness. All other attributes of God, including his sovereignty, must be understood in light of his goodness. Because God is perfectly good, he can never sin or cause anyone to sin.

This led Arminius and Wesley to reject the "U" ("Unconditional election") of TULIP on the grounds that it implies God is the author of sin. That, in turn, caused them to reject the "I" ("Irresistible grace") because if God doesn't foreordain people to hell, there must be a way for people to reject God's grace and separate themselves from God.

In short, to the extend that Arminian/Wesleyan theology differs from Calvinist teaching, it is due to being grounded in the belief that God's primary attribute is his goodness rather than his sovereignty.