In general, Arcane Attack spells are more powerful than Divine Attack spells. If they have the same power level, the Arcane version will usually have an easier recharge. There is a card in WotR that is an Arcane/Divine attack spell but the recharge is Arcane 6 or Divine 8, so a Wizard would be better off with it than a Cleric.
So a character with just Arcane and no Melee/Ranged would be better off than a similar character with Divine.
Of course that ignores character specific powers that give boosts to recharge or attack rolls and such, such as RotR Lini's +1d4+x for revealing an Animal card.
Well, the class decks are a reflection of the Core classes in Pathfinder. The Core classes don't really have any hybrid Arcane Fighters (only the Bard kind of qualifies and the Bard has Arcane and Divine spellcasting), only hybrid Divine fighters (Cleric sorta, Druid, Paladin, Ranger).
Most of the Arcane casters seem to be pure Arcane casters; it's implied that Arcane sorcery requires a long period of dedicated study to be proficient. So there aren't a lot of arcane/martial hybrids.
Mechanics wise, Arcane Attack spells are more powerful than Divine Attack spells, true; Arcane spells in general seem to be less support focused, and the spells that are support tend to be both Arcane and Divine. So weapons and Arcane spells then cover a lot of similar territory.
Seltyiel and the Magus are pretty much the primary hybrid fighting Arcane caster.
Seltyiel and the Magus are pretty much the primary hybrid fighting Arcane caster.
Shhhh! Don't let Crowe hear you say that or that he will break your face.
