Bon Clay is my right hand man when it comes to anime. Listen to what he says.

Here are the bittorrent download links for those series, if you are unitiated.

One Piece: http://tracker.kaizoku-fansubs.com/Torrents/
I recommend watching until the crew reaches the grand line (episode 50 and up) before passing judgement. The series does appear childish/weird at first but it's amazing.

Naruto: http://gotwoot.net/wp-torrents.php (at the bottom)
Naruto takes off before the 10th episode for most people. If you don't enjoy it after at least episode 19, you're pathetic.

Bleach: LunarAnime took their links down when the show was licensed. I suggest using www.torrentspy.com or a similar site to find episodes. Anyway, the show doesn't take off until around episode 17 when the Soul Society arc begins.