Uber/Lyft guarantees you're going straight to your resort, no stops - if you're in a building far from the lobby, you could even ask them to drop you off there specifically. There's always drivers available in Orlando, even late at night. With Mears, you could be sharing a shuttle with someone and could possibly not be the first stop. A late night flight would make me want to go straight to bed and not share with other folks, lol.