You both seem doubly lucky! I recommend you both submit the DS260 forms as the main applicant and list each other (and your children as derivatives).
Based on your own selection, fill out your DS260 form indicating you plan on process AOS, same with your children as your derivative. Also list you husband as your derivative but indicate he will be processing FTJ (Follow-To-Join). This basically means should you complete the AOS process while his own selection is still pending, he will try to proceed as your derivative via CP.
Based on his selection, he fills out his own DS260 as processing CP, while you and your children gets listed as FTJ AOS. In this case, he completes CP, enters the US as a LPR before you and your kids can file as FTJ AOS. Alternatively, you and your children also select to process CP as his derivative - this means you travel back home and file CP with him based on his selection (this option will be faster than filing FTJ AOS by the way)
In the past, when DV processing progressed smoothly, AF243XX would become current and the complete processing via CP before AS241XX becomes current.
So submitting the forms and listing each other as derivatives gives you both two opportunities to complete the process.