I love Lewis Stadlen too (his Banjo was a thing of beauty), but I have heard people say they didn't like his Max.
I think that Oscar is probably second to Lane but I would love to see Stadlen play the role.
As for Goodman, and his being dark...the idea that this show (which is supposed to be a musical comedy) could support over two and a half hours of a Max that was somewhat unlikable was not something that the creative team bought into.
Goodman IS a wonderful actor, but not everyone is cut out to play every role.
"Life is a lesson in humility"