What Should Be in an Intermediate Mechanics Text?

I shall survey the coverage of several popular intermediate mechanics texts --- texts for a typical junior-level course in classical mechanics. I shall then discuss the difficult choices that must be made by the author of such a book and the teacher using it. Should it include Lagrangian mechanics? (My answer is a definitive ``Yes.'') Should it include Hamiltonian mechanics (``Yes,'' but perhaps a little less emphatically.) and if so when? What about chaos theory? Collision theory? Continuum mechanics? And relativity?