I agree with PB, if you are in a rush it makes sense to go outside but that assumes the boat is sorted out and ready for it. I would go through the C and D and Delware Bay and then outside to New York. With a really good forecast and the boat working well you can stay outside, but in general I would be inclined to go into NY harbor and then through Long Island Sound and Cape Cod Canal. A pleasant trip with many worthwhile places to visit on the way.
Back to Grenada in early December. Not sure I will remember how to sail. Will spend the winter and early spring in the Caribbean and then head to Bermuda and the northeast US. Still trying to decide if we will bring the boat to Canada, either in 2015 or 2016.