It depends...(how's that for a definite answer!) If it is a small group, and you aren't planning on hanging out at your resort too much, go value, and more days. If you are traveling with your family of four, which includes a growing 12 Yr old, and you need a tiny bit more space. Go Mod. If you want to spend some quality time at your hotel, go deluxe. Personally, we always opt for a few more days at a mod. We figure if we wanted to hang out at a hotel, we don't need to go all the way to WDW for that. We're there for the parks!