Wombat originally posted:
While I voted the Arcana Unearthed option (it is my favourite of those listed), the point does indeed come down to "what are you trying to map here?"
D&D (D20 or otherwise) doesn't really follow any particular fantasy tradition; instead, it is a blending of many different ones, some modern (Vance), and some not so. While some legends differentiate between Divine and, say, Infernal magics, I have run across very few (at least in the pre-D&D world) where there is a noted difference between Arcane and Divine in the D&D sense. Most of the fantasy stories and/or legends that I like actually use something much closer to ceremonial magic, something that D&D in any of its incarnations has modelled poorly. But ceremonial magic, while impressive and insteresting, doesn't work well in games where everything is done in a 6 second timeframe. If magic doesn't work more or less at the drop of a hat, the magic-based characters, whether arcane or divine, would have no real place or purpose in the game, at least as PCs.
So for gaming purposes I like what Monte did with AU; for other purposes I prefer ceremonial magic.
I also think your sig has very good advice for GMs to follow.