Is there a particular form of meditation that's better than others for controlling pain?

Depends on the pain: Pain can be caused by a multitude of reasons. It can be categorized as muscular/bone pain or what we call somatic pain. It can be as a result of nerve irritation causing neuropathic pain. It may a visceral pain in the internal organs as in stomach pain. There are medications that are specific for nerve related pain and some that are more specific for bone pain as in anti-inflammatories.

Depends: There are several pain medications for acute and chronic pain management. There is no "silver bullet" which is better than others. Consult a psychopharmacologist to find out which would be the best option for you to start with.

One best for you : Studies have shown that meditation can have positive effects on your autonomic nervous system, your immune system and your hormonal systems, thus rebalancing your overall metabolism. Proper abdominal breathing techniques are paramount in achieving the relaxation response. You do not need to be a master. Find someone who can teach you this and then practice it consistently.