McClaren double stroller worked great for us!!!
I hemmed and hawed about strollers for a long time before our last trip. I had a 3 and 4 year old and I questioned whether the 4 year old would even sit in it... I, myself, didn't own a light double stroller... just a jogger and I wasn't bringing that. It's way to bulky and heavy for the buses.
I thought of buying one to bring - but it seemed silly because although I hoped my oldest would sit in it in DW I knew he wouldn't sit in it at home, so to spend that much money for just the trip was too much for me.
I looked into renting one - and that seemed like a great option... I know many people who have done this and loved it. The strollers were great and the people the rented from were wonderful.
As a last ditch effort I emailed all my Mom friends and asked if anyone might have one I could borrow - just for our trip. I even offered to switch my jogger for their lightweight stroller while I was gone. Low and behold, my cousin came through!!!! She has a 6 & 4 year old and a McClaren double umbrella stroller that had been sitting in her garage for years that she hadn't used and was happy to part with.
Having a stroller here to go to the airport proved to be a great asset!! When the boys weren't in it I put our carry ons inside and had them hold on while we walked through the terminals. Checked it right at the door to the plane and picked it up on the way out. It folds up small and is very light weight. Had a nice cupholder for each of the boys drinks and a basket underneath for wipes, snacks, etc.
You want something that is light and folds up small - otherwise the buses will be a nightmare!!
Good luck and let us know what you get!
DON'T FORGET!!! No matter what stroller you decide on, bring something to put on it so it's easy to find in the sea of strollers... Before you get on a ride you park the stroller in a designated area... there are people who work in the area specifically to rotate the strollers so they take up as little room as possible... so your stroller may be parked in a slightly different place than when you first went in. If you have something on it so it's easy to spot, that will also make your life much easier and help stop the panic thinking someone else may have picked up your stroller by mistake (many look alike!).