Your boys might not like toys shop, but there are a ton of fun things to do at DS...movie theater, live entertainment, etc. Lots of fun places to eat. I think it's worth a visit if you have several park-free days open.
If you've been to AKL for dinner, you know best if you want to go back to try a different place. For venturing elsewhere:
1) Cali Grill at CR for dinner. We went last December and loved loved loved it. Great food, decent service (not as good as Artists Point was for us, but still very good), and a fantastic view as our party of six were seated in a spot where we could see MK beautifully. If you have dinner before, say, 9ish, you can go elsewhere for a bit (we had dinner at 7, left around 8:30, shopped at CR and looked at the Christmas decorations) before heading back up to the deck outside of Cali Grill for an amazing view of the fireworks. It was the highlight of our trip. Really amazing...and I don't think it's stuffy or too formal for boys your age.
2) 'Ohana breakfast or dinner at Poly. I love visiting there even when we don't stay. You could go before a dinner ADR and visit Trader Sam's (if you're inside at the bar, the 'antics' are fantastic), have dinner at 'Ohana, then watch the fireworks from the beach.
3) I love the BC/YC area and Boardwalk, but the restaurants there aren't 'must' experiences to me personally. If you like seafood, Cape May is really good. There are good options along the Board Walk. My favorite restaurant there is Captain's Grille at YC, but they're under renovation and in temporary space...so not sure how that will work while things are under construction.
4) My family loves Boatwright's at POR. If you go there, you can also stroll around POR Riverside and check out the mansion area (really beautifully themed), check out Yee Ha Bob's show, watch the boats to DS along the river, and walk over to POFQ to their QS area and have beignets for dessert.