All of those dates are good (25th has the fewest seats). short list but it's so early to predict. You also have CDG/CVG as a good option.
Hotel row in DTW is only a mile from airport and you can walk from Sheraton (nice pool) to eats safely. Several others there. Wick and Merriman Roads. Cheap but decent is Comfort Suites w/Marcoz restaurant on premises. I f you do CVG you have DoubleTree on airport grounds but plenty about a mile away. All free shuttles. Not worth spending more than a day @ either in my opinion (unless you rent a car and see sights, but DTW cars have been $50-600 wkend day lately--no specials.