spellstaff is far from a nobrainer.. heal is a good choice... but there's some strange stuff going on with spellstaff. You can put in "any spell you can normally cast", you might want to ask your DM about that. Does this include spells cast from scrolls? Does it include spells you can cast because your cleric buddy cast "imbue with spell ability"? Also... wizards and clerics, you too can cast spellstaff (hello wish and miracle), and spellstaff is not restricted to druidic magic. spellstaff also works well with metamagic.