We have always used Mears. It costs $27 pp, round trip, to WDW. Since it's been just the two of us, the last few times going, it's cheaper to use Mears. Depending on how many people are on the shuttle (and I don't know how they determine if you get a mini van or a bus), you could stop at three other resorts before you're dropped off, or go directly to your resort. On the return trip, we have always had a bus pick us up, with stops at several other resorts on the way, to the airport. Like someone else said... if there's four or more in your party, it's cheaper to take the towncar.