I hate the concept of memorizing spells. To be blunt I think it sucks.
I would like to come up with a nice system that would allow both Clerics and Wizards to spontaneously cast spells. Maybe memorization could be incorporated somehow as a way to boost the power of the spell… sort of as a reward for limiting your choice for spells per day (versatility).
I’ve always allowed Clerics to spontaneously cast whatever they felt like. The only draw back was that I would sometimes limit what spells they could or could not cast based on how well they were serving their god. It forced the PC to role-play his character at least a little bit better if he expected to be able to spontaneously cast “Smite the Hell out of Random Bad Guy” without memorization.
As far as wizards are concerned.. I allow them to spontaneously cast by casting the spells straight form their spell book. This forces players to actually take steps to take care of their spell book (which many players forget even exists). It encourages role-playing. A spell book is supposed to be one of the wizards most prized possessions... all too often players and DM’s just forget about the thing.
Does anybody have any feedback on this? I’d like to know if there is a way to fine tune it somehow. Let me know what you think.