These are things I found particularly enjoyable, though they may also have been terrible.
No movies or OVA's. Series that started airing in 2001 aren't included. Series that started in 2002 but ended in 2003+ are included. Ordered from Favourite to least. From Gravion onward I have yet to...
List in progress
I've seen these. No order. No ova's, movies, or specials in this list. Just full on TV series labeled on AP. S2's and long running current airing shows included. (as of June 2012)