In order to define God we often use the words Omni (All) potent (powerful) scient (Knowing) present (everywhere) however God has never described himself as All loving. This is something i feel people used to describe God for 3 reasons
1: They don't understand that God isn't ALL loving but shows his love to all things except for sin
2: They are ignorant of they are talking about
3: It purposely listed in order for them to denounce it so that they can further denounce the concept or omni of God.
I disagree that God is all loving, IF we are looking for an attribute to describe God in a sense that we can understand, we should use "Holy" Holy means sacred or revered and in the context of God it can be simplifed to "Set apart, Different in a sense of reverence" Its to emphasis that he is NOT like us, that he is completely different from us "Whom will you liken unto me?" God asks this question for man to consider if there is anything we can think of that is similar to God in power, in knowing, in presence and in his Difference concerning us.
Consider Omniholy before stating Omnibenevolent.