They are all good
The key is to super freeze your main entrees. My deep freeze gets things down to -40f. I don't use any external devices to assist, the food itself is the frozen mass required. Pack it TIGHT, and you can easily get 3-4 meals in there. By the final night, it's thawed but still very cold. You can stick it in the freezer part of the mini fridge at the hotel for peace of mind.