Adaptations from manga are almost universely terrible and don't count - One piece is the only remotely watchable anime of the big 3, but even that is much, much better to read than to watch <_< (Oda is god)
Claymore was good but they diverged from the manga to end it which made me sad.
Season 2 of Haruhi is on now! yay! (sort of, it's being interspersed between series one episodes :O )