Bleach I can vouch for as a good anime, Im up-to date on it being as I watch Jap eps. The Eng dubs I assume (and will most probably be right) will downgrade its viewing quality, but for those of you who haven't watched the Jap eps 1st, it will be taken lightly and go un-noticed.
Like Naruto for instance, I saw clips of it on Jetix on sky and...

............. erm..... yer, I really understood why people said they prefered Jap to Eng dubs.
I myself wouldnt watch Jap dubbed anime before, and would get confused as to why people would argue that Jap dubs are better when they couldnt even understand Jap fluently

. Now though I've watched quite a few whole anime serieses and still continue to search for new ones that I may of overlooked and could actually be called "old" now to some.
Trinity Blood though, I started watching but stopped around ep 12 or round about. Something just wasnt drawing me in.
Hajime no Ippo
Tenjou Tenge
Konjiki no Gash Bell
Yu Yu Hakusho
Hunter X Hunter
Golden Boy
Air Master
Dragon Drive
One Piece
Hellsing
Chrno Crusade
Naruto
Bleach
Flame of Recca
Gun Grave
Those are a few of the Jap anime serieses I've watched or still have within my possession