klark0 - 2:15 pm on Sep 3, 2012 (gmt 0)
"Quality reputed" sites in the eyes of the beholder. Most people see their babies a whole lot differently from what they are actually are.
I think this is a topic not worth the time trying to study. PR measures only your link popularity, whereas rankings are actually determined by hundreds of other factors.
Probably, the only reason to focus on PageRank is if you're selling links.