Coronado is a visual treat! I've never stayed at the Contemporary, just passed through on the monorail, but my eyes prefered the view I had everytime I looked out my window or walked out my door. We've stayed at a couple deluxes, and MAYBE we would again, but it's hard to pay more for something that I really don't see as superior. My kids said that CSR feels more like an "outdoor hotel," meaning that it's as pleasurable to be outside the room as it is to be in. Their choice is to go back to CSR.
What a fun problem to have--choosing among all the great WDW resorts!!