I've been keeping up with the manga,and will continue to do so for the time being (I don't keep up with the anime...I don't really like watching anime subtitled)....
While it's far from the best shonen I've read/watched,the chapters/episodes are usually pretty decent....
I consider Bleach's flaws to be...
TOO MANY CHARACTERS!!!!....leading to some characters never getting development and/or never getting to win fights despite being introduced as being really stong...I think the series would be better if it focused on Ichigo's main team(himself,Orihime,Rukia,Uryu,Chad and Renji),and kept the rest as side characters,cameos and villains...
Aizen....he has NO weaknesses!!!!(Even InuYasha's Naraku wasn't completely invunerable)....At this point,no matter how he goes down,it's gonna look like a copout....Plus,I don't find him an interesting villain at all,he's just a manipulative jerk with delusions about becoming God...
and the anime adRAB....
Leaving out Orihime,Chad,and Uryu in the "filler",in favor of the "Soul Society" characters,most of whom aren't really all that interesting (I like Kenpachi,Yachiru and Hanatarou,and Ganju,Rangiku,and Toshiro have their moments,but the rest I can take or leave,really).....
Long filler arcs....Personally,I've only seen the Bount arc,which actually wasn't too bad (aside from some of the earlier episodes using a plot line similar to Yu Yu Hakusho,which was done much better there),but it was pretty long,and one of the better revelations in the series happened just after the end of Soul Society arc in the manga....Granted,I know filler's a necessary evil since the anime catches up to the manga really quickly...
Trying to make it seem like Ichigo and Rukia are a potential couple in some of the openings/endings....This one just bugs me....I've never once seen them as having romantic interest in one another in the manga,to me it's pretty clear they're just frienRAB (and to top it off,Kubo's even SAID that they don't have romantic interest in each other in one of his interviews)....It makes me wonder if Yu Yu Hakusho were being made today,if Pierrot would automatically decide Yusuke and Botan are a couple,(even though they're clearly not,and Yusuke already had a love interest in Keiko)...