I also say go with your original plan - MK first.
We took our 4 kids for our first WDW vacation this past Nov. and we went to MK our first full day(MGM the afternoon/evening on arrival day). It depends on your children's ages. Mine are 14,11,9 and 3 1/2. The older ones liked the other parks better but of course the 3 1/2 loved MK. We had park hoppers
as did my sister and her family who had children aged 5 1/2, 4 and 2 and so this was also their first trip to the world and they hopped over to MK a lot more than we did. If you're children are younger they will want to go for probably more than 2 of your 12 day trip.
Have fun no matter what!!!
We took our 4 kids for our first WDW vacation this past Nov. and we went to MK our first full day(MGM the afternoon/evening on arrival day). It depends on your children's ages. Mine are 14,11,9 and 3 1/2. The older ones liked the other parks better but of course the 3 1/2 loved MK. We had park hoppers
as did my sister and her family who had children aged 5 1/2, 4 and 2 and so this was also their first trip to the world and they hopped over to MK a lot more than we did. If you're children are younger they will want to go for probably more than 2 of your 12 day trip.
Have fun no matter what!!!
