I am going to "second" some suggestions from PPs:
Stroller - definitely yes! Besides the benefits mentioned, if at any point you need to hurry to something, it's a lot easier to put them in the stroller and go than trying to drag them along when they may be tired. Ideally, you won't be rushing anywhere, but I'm trying to keep it real...stuff happens.
DHS - Definitely worth spending SOME time here. For your Elsa-obsessed daughter, Frozen Sing-a-long is great! We - my DH and 3 BOYS - went based on recommendations from here, and we were all glad we did! Even my sullen, angst-y DS12 (then) laughed out loud and enjoyed it.
Move HDDR to Wednesday - Even if you go to DHS for part of the day, I think it would be best to do HDDR on a day that is more relaxed. You don't want the kids to be so tired from being in a park all day that they don't enjoy the show.
Resort - Granted we all have differing opinions about resorts, BUT if I wanted to make a good impression on my DH to increase my chances of a return trip, I would NOT stay at CBR with the construction going on. Especially since he values down time. The Port Orleans resorts are very peaceful and have fun pool areas and bar. Or if cost is a factor, consider the newly refurbed POP. I encourage you to visit the Resorts board and see the pictures/read the thread for yourself. Although, they only have two queens, one of which is a Murphy bed, but no additional sleeping space (Many mods have two queens + Murphy bed and I'm not sure if that's an important thing for you.)
Other thoughts:
Granted, we had all boys, but when they were little (4, 6, 8), they had little interest in the nighttime shows, so Wishes was the only one we did. They couldn't have cared less about seeing Illuminations, though they really loved Epcot. Now, they probably would have enjoyed the Star Wars show at DHS. But in general at that age, we found early evenings and rope-drop starts made for the best days.
AK is such a peaceful, beautiful park and I think it makes for a more relaxing day. If your kids are at all interested in animals, they will really enjoy it. There are good places to eat in the park (the new Satu'li Canteen, Yak & Yeti, Flame Tree BBQ, etc.) and Rainforest Cafe just at the entrance. Maybe plan on eating in the park instead of Cape May so that you can maximize your time there.
And one more thing - you can PLAN the perfect trip, but things don't always go as planned. So yes, it is so important to plan and be educated. But, be willing to let things go or to adapt your plans or to keep things in perspective. I get so stressed making sure everyone is happy and having a great time that I have a hard time enjoying myself. (I'm working on this!) Also, even though my DH enjoys Disney, I still try to keep my Disney chatter to a minimum (which is why I'm here!) at least until the trip is about a month away. I ask him if there is anything in particular he wants to see/do/eat and take that input (if there is any) into account when I'm planning.
Hopefully you'll find something helpful in this long post!
