Wow, some manga is harder to read than actual literature? My level is low so I find all manga hard, but I'm surprised to hear that Trigun is hard.

I do love the friendship themes in Bleach; it does tend to be "shown" really well, much more strongly than in even other Jump manga, especially since it's "normal" friendship as opposed to really operatic stuff at the beginning: I mean, there's almost something shoujo-ish about it. XD