I don't know what everybody else's reasons are going to be, but mine is that...I don't know actually, but there's something about it I connect with.

Yeah same here. xD I love Bleach. I don't know why though. Must be Ichigo's hypnotic eyes...I mean Orihime's eyes!

People'll like what they like.

I used to like it til Aizen became so ridiculous. Now i don't follow it anymore.

I've seen a little bit on youtube, not sure if its for me but i might give it a try sometime. More of a Guyver and Heat Guy J fan myself.

For me it was the mystery of what Shinigami were. How an eclectic group of people deveolped a strong bond and friendship. Then girl gets kidnapped, boy (with friends) save girl after overcaming his self doubt and realising his potential. The series had just about the right number of  characters that you cared about and see developed. There was a good mix of comedy, action and drama. 
 
Those were in the earlier days. But now it feel so diluted, continuously recycled with too many characters to think about,  that I've lost interest.

1.  Filler is anime-only.  Read the manga.  Or google 'Bleach filler' and skip the relevant episodes. 
 2.  Movies are generally ok to good... despite being filler. 
 3.  Bleach is one of the "great" japanese mangas currently running.  Which means it has access to modern artistic tools (computers), as well as an engaging, long-term story (as opposed to, say, Dragonball's cycle - which is cute in its own way, but surely not the mark of good writing... at least not the mark of good writing other than Great Expectations-style "paid per word" writing. 
 
Long story short:  There are FEW "long-running" mangas/animes like Bleach - even fewer that appeal to american audiences (IE, relatively PG13, few japanese cultural references to make kids get all "sweatdrop", etc.)

And now it's poorly written because Ichigo is stuck with Orihime this time. I mean, Kurosaki's Ray of light was supposed to be Rukia! Not Inoue!