whats the best tracker for freeleech

TorrentBytes (permanent free leech on all packs like tv, movies, music, apps, games)
SCC (permanent free leech on mp3 & 0day)

Check Midnight-Torrents and LeechersLiar, they both have freeleech periods when thier donations reach monthly server costs.

for e-learning: docs.torrents.ro always have those large torrent on freeleech

Movies: TDC always have the movie of the week on freeleech and many selected torrents on freeleech too.

FTN and iTS has a free-leech forever.
But getting into those trackers is so hard that by that time you can buffer you TL account to a 500GB.
Bottom-line FTN and iTS is really good but rare also. TL in the other hand is easier to get, It doesn't have free-leech but it very easy to seed there so free-leech isn't so neccessry.

TTi has the movie of the week and the movie of the day which are freeleech, and SCC has freeleech for MP3 and 0day (Appz) releases.