> I don't know where you are getting info about which project is used more or less
Well, that's why we have the State of Haskell survey, right?..
I've been programming in Haskell for more than 20 years (more than half of those professionally to some extent).
In all that time, I think I filled in one, and just one, of those, when I was first aware of their existence (years ago).
Even basing a decision on that survey carries with it a strong bias: you'd be basing that decision on the kind of respondent who would participate in the first place.