M girls just turned three and we have been through soooooo many strollers, but the one I still have and use for walks, jogging is the MBUD. It is a great stroller and we have used it for almost three years now. That being said I would NEVER take it to WDW. It is way too heavy, especially if you are using bus transportation. It also does not fold that flat. Your babies are still young and they will need to be held once you take them out and then who is going to carry that huge stroller & diaper bag onto the bus/tram?
I also have the Peg Aria....hate it, dont get it! It is light weight and folds nicely, but once the babies get a bit heavier, it is soooo hard to push and the basket hits the ground with anything you put in it and then you end up with a huge hole(which I have). This stroller is lacking the middle set of wheels, which makes it difficut to handle. After a while the seats get very difficult to recline. The hood is useless for shade. It seems like a great stroller in the begining (thats why I got it) but it is not worth the money.
ok, with them being so young, I would go with a light weight for WDW, such as some mentioned, maclaren, combi. I personally like the Maclaren.
We have used regular cheap umbrella strollers too, but the handle bars are so low, that your back will be hurting real quick. Those are not vacation stollers.
I now own two single maclarens that we use for WDW, trips, airport, etc. They are super light weight, we can split up or I use the plastic stroller connectors and put them together if I need to(very rarely, but just in case). It has a shoulder strap and they just work out terrific now.
At this age they tend to....ummmmm, let say they dont always sit nicely together and the two strollers has resloved that problem too
Congratulations Twin MOM. Have fun and enjoy it's a blast!!