I'd recommend the kolcraft contours. Both seats can face both directions so you could have both babies facing you or facing each other when they get older. It comes with one car seat adapter and you can purchase a second one, so you can remover both seats and just use it with the car seats like a snap and go. It is the easiest double stroller I've ever used (I used to have a graco duoglider and hated it). Its easy to steer (even with one hand) and pushes pretty good on grass. It also has a huge basket that is easy to get to from all angles. The only downside to it is that the back seat has to be taken off to fold it but it goes on and off pretty easily so I think its worth it.