Here is good run down of your options - but as bumbershoot said - no ME: "Airport Proximity to DLR and Ground Transportation Information" by 3TinksAndAnEeyore
www.disboards.com/showthread.php?t=2318297
To add on to this, I was thinking about ME this weekend when I flew into LAX (not for Disney but for a wedding in SoCal). I wrote up some thoughts on LAX here -
Comments on LAX and other SoCal airports . and I have used ME twice at WDW.
I believe Disney had to negotiate hard to get ME in place. Disney is a big fish in the little Orlando pond, but a small fish in the big LA and SoCal pond. Remember what ME does - it puts other private transportation options like taxis and limos out of business. Why? Because it is free. How can a taxi or limo service compete with free? Not very well.
Plus WDW has 20 hotels and some 20,000 rooms. Lots of people use ME. DLR has only three hotels and a fraction of the rooms (maybe 2000?). So demand is much less.
And finally, ME only has to serve Orlando airport whereas there are multiple airports in SoCal that serve DLR. So it is a very different situation. DLR would have to negotiate to offer this free service with the airports and have all the (for pay) taxi, shuttle and rental car services oppose them. Lots of politics there.
I am sure DLR would love to have something like ME but I suspect the hurdles may be too high and the payoff too low.
The lack of ME at DLR is not because DLR is lower class than WDW but because the situation is just very different.
Just FYI.