The absolute best fix for creaking BB's is as follows.
1)Remove and thoroughly clean both the BB and the inside of the BB shell.
2)Wrap the thread of the BB cups with teflon tape. One layer is fine here.
3)Slather a high quality bike grease on the inside of the BB shell.
4)install and tighten to the proper torque ratings the BB into the BB shell.
Do this once a year on your bike if you ride in especially wet conditions. That's all there is too it. I have ridden in some of the worst mud and water and also in the dryest conditions and never had a creak after doing this fix. Get the teflon tape at any auto supply store or any home improvement shop in the plumbing section.