I love HAL but do not think it is well set up for children. They have some activities but it is just not an overly kid friendly place, unless you have quiet serious children. This is part of its appeal for "older" travellers who like this quietness and low-key setting.

Save HAL for when the kids are gone and you just want to get away on your own. Sail HAL and you will have money left over for their college education.