bottle nipple issues

Colleen
Any suggestions?:
At the hospital my baby was picky and used this preemie (I assume that's the type of nipple) nipple and not the regular nipple for the formula supplementation bottles. I bottle feed breast milk. He does not like the Dr. Brown's preemie nipples, we've even tried poking more holes in the nipples and it doesn't help- he still orders the crappy/leaky hospital nipple. Any suggestions on nipples to try? If it's another brand that would require another brand of bottle...that's fine! I'm ready to get rid of this shitty leaky hospital nipple!