Namely, that Sword of the Arcane Order is Arcane casting, because it explicitly states Wizard spells, and not "spells from the Wizard/Sorcerer spell list", thus implying that they are spells as they would be prepared by a Wizard.
Also, I disagree with the interpretation that Prestige Paladin's turn all of your spells into Paladin spells. Nice try, bucko.
Anyway:
LG Hellbred Paladin 5/Knight of the Raven 3/Geomancer 4/Knight of the Raven +7/Something that advances BAB and CL 1
Feats: Battle Blessing, Sword of the Arcane Order.
BAB of 18-19; full Paladin spellcasting, Wizard spellcasting up to 4th level, with Battle Blessing allowing them to Quicken damn near anything.
On top of that, Hellbred means that I get all the Consecrated, Vile, and Corrupt spells onto my Paladin.
If I wasn't restricted to being a Paladin of one of two groups, I would be a Paladin of Pelor at this point.