I plan on making an oracle for a pathfinder rpg game with a new dm. I decided to go the divine caster of the group, I certainly don't plan on making it a nightmare on the DM mainly because being that guy at the table is never fun. However I'm torn between those four oracle mysteries and as such not sure which one I want to pick ultimately. After actually reading through it made it an even tougher choice. We have a gunslinger, rogue, and a monk. The dm is doing mostly a martial (with wands and scrolls to support my character) campaign but because he's new and also I managed to talk him into letting me playing a divine caster so we had someone who would have access to healing so that if the players go off and get injured I've got the support and wands will give access to healing, scrolls to spells like remove disease, paralysis, etc.
Any help is much appreciated.
Also feel free to discuss any experience you've had using the oracle class, any complaints or enjoyments. All discussion welcomed.