Most dubs suck, however there are notable exceptions when the company dubbing them manages to land their hands on a good voice actor. Like Mary McGlynn for instance(GITS)
Bleach however, seems like it got a mix of suck and win. The dubs aren't all that bad, and they do a good job most of the time, but when it comes to trying to inflect emotion, they drop the ball by either falling short of the mark or overdoing it.
For me though I think it's just personal preferance, as I don't like hearing things as they weren't meant to be heard
It is okay for a dub but there are other series that are done better.
The one downfall personally is when you hear the same voice actor over and over and over again. which seemed to be the case for Bleach when you could connect one character with 20 other different characters