If you want the tandem, I personally think baby jogger, it has more room unlike the strider (cranky toddlers kicking babies seat turned me off that one) haha. In saying about the width, the love n care fits through a standard doorway it's 74cm wide which is slim considering its side by side, but tandem wise I would defiantly get a city select If I could get it for a good price second hand, gumtree has heaps of them.
we put the city select on layby!