Not only are drug comparison threads such as this one not allowed, but this topic has been covered probably a thousand times already so use the search engine please.
They are both very valuable narcotics with well established therapeutic value in the treatment and management of chronic pain syndromes. Some prefer oxycodone, some prefer hydromorphone, every body has different individual body chemistry and will react differently. I have no idea what you wanted us to say as far as "personal dosage info", everyone's tolerance are different and it's not HR to discuss our varying tolerances to opioid analgesics.
It depends whether a person is abusing their medication or whether they are strictly taking it as needed for pain, and which route of administration one prefers. The most effective oral pain medication is dose dependent and will vary patient to patient, I have found roxicodone to be more effective if one is using the oral ROA, it lasts much longer than hydromorphone in my experience.
/thread, please read the OD guidelines.