The One With The Mugging. This episode was, as said, another great installment. It is definatly top 10 for season 9!!!
Ross finds out that the person who mugged him when he was 12 was actually Phoebe! Great character pass fuller.
One thing I caught about the episode, however, was that Rachel had little air time. But it was subtle because she was not needed. It seemed that Jennifer had a cold or something, but other than that, the writers did it well, very subtle.
I give this episode a 9.6! If you are looking into the series, this would be a great episode to watch!