If I were in your shoes: I would check itineraries for any difference in what I liked and wanted to see, get square footage of cabin and balcony for each cabin, find out exactly what kind of obstruction it is on Equinox, check what lead entertainment (like a speicific broadway show - shortened for ship of course) will be on different ships at time and decide how much of plus or minus the entertainment is, decide what access to spa is worth if anything, and then call Bonnie. As I said before, I think you can have a great first cruise on any of these ships.