Personally, I like the "Learn You A Haskell" style, of carefully and very gently building up the basic language, with examples that are as simple as possible and deal with only the issue being discussed. My problem with Real World Haskell is that it combines learning the language with building stuff. So when it gets to something like monads, there are way too much noise surrounding the core concept being explained. It's fine to show practical examples, but not everything should be built on them.

Aside from that, I like the practically-oriented stuff in RWH. I would like to see an article on doing concurrent, parallel, distributed systems (Erlang-style) in Haskell.