When are you going? Is it a really busy time of year or one of the quieter times? Also will you be doing all the rides on 'child swop' (where 1 parent can ride while the other parent looks after the child/ren in an area and then swop over). Although it is not as time consuming as queueing twice still takes extra time. 2 children will probably not be able to go on all rides. Our youngest is all but 9 and was not able to go on 7 rides between all the parks, including Busch; I don't think there were any at Disney she couldn't go on. The best piece of time saving advice is to get to all parks for rope drop, at Disney 20 - 30 minutes before the advertised opening time. allow extra time at MK to get from the carpark to the entrance as you have to go either the boat or monorail