Lately I'm only using PirateBay, as I find everything there what they also had on f.ex. GazelleGames, so I didn't ruin my ratio. They have a lot of seeders too, so some downloads are very fast.

Instead of ripping all my anime series, I just downloaded them again from PB, and I got now even more I had, downloaded about 50 series, and it was very fast.