I like this routine the most out of all of the ones we have learned so far. I think that it will have a lot of utility with teachers and makes the process of teaching students how to compare/contrast every explicit and manageable. I believe that many teachers rely on the Venn Diagram and expect students to do it after it is modeled once or twice. I like that the Overall Concept and Like/Unlike Categories pieces really reinforce the idea of supra-ordinate relationships, while the characteristics reinforce subordinate relationships.