Very few of you (nonCatholics) have dealt with what Pope Benedict XVI said,instead you focus on what you all think about the whether or not Peter was in Rome,which in most Catholic and nonCatholic circles is not nor has ever been much in question. Read annalex's responses on that on the other thread.
Let me also mention that whether or not Peter ever was in Rome (he demonstrably was) has little to do with his primacy, apostolic succession, or the fact that the Holy See is presently in Rome.