It all depends how many are in your party, and how frugal you are. Mears is ok if only 1-3 are in your party. If more, a limo is better. If very frugal, take the Lynx transit bus to the TTC and Disney transportation to your resort. Also, a limo may allow a grocery stop. And hey, if you are well heeled, go for the limo even if there is just only you going to your resort. More info is available on the transportation thread.