I would not make location of the resort a high priority; getting to any of the parks is not difficult. As others have posted, whether the you have park hoppers or not and the hours that the parks close have bigger impacts. How much you desire Tier 1 fastpasses for any specific park may come into play but I'd work around that (e.g. I wouldn't visit EPCOT two different days just to get a Test Track FP and a Frozen Ever After FP unless I had park hoppers; I don't need two full days of EPCOT.)
Without park hoppers, I would pick Magic Kingdom unless it closes early for a party.
With park hoppers, I'd lean towards Magic Kingdom if it does not close early but would consider other parks as well depending on their closing times and expect to visit the MK on more than one of the following four days.
Without park hoppers, I would pick Magic Kingdom unless it closes early for a party.
With park hoppers, I'd lean towards Magic Kingdom if it does not close early but would consider other parks as well depending on their closing times and expect to visit the MK on more than one of the following four days.