I’d go for two nights at the JWM as moving after half a night would too much hassle for $60

Since it’s effectively a 1.5 nighter before you start a cruise what about 2 nights in a club room at Le Meridian Dubai hotel & conference centre. The club room is nice as was the lounge area. Spend the rest of the $ on a cab to the burj or something? If you’re a Plat I’m sure you’d be upgrade from a base room. I did this from an equally late arrival time once before moving onto Abu Dhabi for a few days.