Mountain Buggy Duet VS Out N About 360 Nipper

I have an Icandy Pear which has been great for when my twins were tiny babies in car seats that clip onto the frame but now that they are big girls at all of 6 1/2 months old I want a side by side pram.. These are the 2 I have in mind? The Bugaboo Donkey is way out of my price range Any advise/recommendations would be greatly appreciated...

Have you considered the city select mini? Its also side by side. Its narrower and folds up smaller than the Out n About. The other advantage is that the sun shade for each seat is separate so one shade can be up and one down.