Not sure if one place is better than another but there is another place to report this which is part of Operation Smooth Streets ---kind of makes me giggle. Anyway, the link is: http://potholes.phila.gov/tap.nsf/d15d032a30a36768852578850008337c?OpenForm

I reported ditches on Annin Street and I don't know if they came out as a result of that or not but they are now all repaired and it happened within a week of my report, may just be a happy coincidence.