In the campaign in which I currently play, divine spells are almost all PHB. On the other hand, only about two out of every three arcane spells cast are core standard: the rest are homebrewed. You're about as likely to see Teppin's Most Dramatic Disappearance as you are Teleport, Zambargo's Perfect Harmony of Reflection as Scry, and Ulysses' Horrendous Transmogrification as Polymorph Other.
EDIT: We also use the Tome and Blood stough (this is a 3.0 game), and obvious varients on core spells, like Lightningballs and so forth.
--Jeff