Lange 1 is iconic, finishing is great etc. Rationally it should be the number one choice. But I think it is hard not to compare with other Lange offerings - don't you really want a datograph, or a perpetual even if they are out of reach? Also my personal experience with Lange in general is that the excitement wears off pretty quickly ...
The tradition and 1921 on the other hand are truly unique. They are not "perfect" but I think they will be more fun in the longer term. Ideally you should try them on before you decide.