Synthmeister: I think you need to tell us what your 'specific' needs and wants in an arranger are. Are you going to be using it mainly for regular performance gigging, studio work, composition, or? What type (genre) of music do you play most? All the boards you listed are great boards but have strengths/weakness' in different areas. In order to better help guide you in your keyboard selection, please provide us with more information. - Scott