I'm a titanic Bleach fan. You might notice this from the majority of my avatars (I don't have one right now, but they're usually Bleach related). My love of Bleach has gone so far as to me memorizing most of the lore. I even explained the entire evolutionary cycle of Hollows... to a fellow Bleach fan! :xd:
One thing I like about it is that there's a significant presence of monstrous characters (the Hollows), and that there's a darker aspect to the main character, in that Ichigo has a Hollow side. Actually, this series, thanks to the Arrancar, was partially the reason I've come to love Spanish themes in general. :3
For the record, I don't know if anyone here is up to date on the current events of the manga in Japan, but my theory that I've had ever since Ichigo did his super-werewolf-chuck-norris-hollow-form thing against Ulquiorra was totally proven correct in the last chapter or so. I thought that Ichigo may have broken the barrier between Hollow and Soul Reaper down himself (that's the job the Hokyoku is supposed to do), since he seems like a more perfect fusion of the two; a Zanpato, Hollow Hole, uses Sonido and Cero, etc. Since Aizen has taken on an almost identical form due to being fused to the Hokyoku, I think that practically settles it.
As for characters, I actually like a lot of the characters in Bleach... Most of them even. My favorite is definitely Shinji Hirako, though, as he's one of my favorite characters in any anime. Other favorites are Ichigo himself, Chad, Kenpachi, Yachiru, Ikaku, Byakuya, Kieske, Don Kanonji, Gin, Nel, and most of the other Arrancar. I have other characters I like though. ^^