I feel your pain. Haskell makes it possible to write very powerful libraries which change how you think about your program, like MTL or conduits, and has APIs like Data.Text which change how you think about string processing. However, the language and community is quite mature.

Most of the debates either have answers (use Text instead of String, most of the time) or don't matter to most people (MTL vs transformers or monadLib). In my mind, it's no worse than trying to pick a JavaScript framework. If you're interested, give it a shot some day.