I don't have sophisticated reasons for my preferences, but having seen the autumn dial in different cases, I prefer it on the square case, which I own. In contrast, with the Ice Blue dial, I had an opportunity to purchase it in the square case but decided to wait a year in order to get it in the galet case because I prefer that combination much more. Bottom line, its all preference, these are all beautiful pieces with no wrong answers. If forced to put it into words I would say that the robust nature of the autumn dial fits the square case better. In any case, hope you end up happy!