A counterpoint tho fst is...when just English and Italian BB's existed, cranks weren't nearly as evolved. Cranks are much better today.
The biggest problem with the variants mentioned is improper set up. BB30 is simple and much less expensive then cartridge BB's of years past. They are also much lighter and much stiffer. When the average guy tries to set one up, he could well fall short of what is required. If you re-read what the OP wrote, I believe he falls in this camp. Copious greasing of this BB type will not solve a creaking issue. This also pertains to the low training level of local bike shop techs. No it isn't easy to keep up with all the std's for those that aren't tech heads. As it turns out the new BB's are all highly derivative of one another and have similar installation practices. BB30 and PF30 derivatives take 30 minutes to service and good bearings can be attained for less than $20 a set.