PTP,HDBITS,WHAT.CD,BTN,SCC are the most over rated trackers
I already have some of them but they are useless and never had any special content

IPT,TD,TORRENTSHACK,FILELIST,SCENEFZ,PTM,BITSOUP and Scenetime are under rated
BEYONDHD and hd-united provide the best HD quality I have ever seen but both are the most under rated trackers