I agree with the likes. I can't speak to the Radwagon, but the Lectric kickstand is more stable and easier to use than the Flyer. I have 3 little kids (but not little enough to be in the Yepp seats). I haven't kicked them yet, but I have brushed their running boards with my heel a couple of times.

I'll add one more point. Over the weekend, my wife & 3 kids were rear-ended at 40MPH while riding the XPedition. Everyone went to the local trauma center, recovery is going to take a while, and I don't care to get into details.

But, regarding the XPedition, the Orbitor passenger cage is much, much stronger than I imagined. It held up well and kept all the kids away from the car that hit them. When I first installed the cage, I thought it was ridiculously overbuilt. It's a fully-welded tube frame, fitted to a fully-welded, overbuilt bike frame, with an obsessive number of bolts. Much stronger than the traditional seats & cargo racks I've had on traditional bikes. It seemed like an inefficient waste, putting such a heavy cage onto a bike. But, given the events we've been through, I'm certain we would have had worse injuries had they been riding in a more conventional child bike seat. That cage was worth the weight (and also the wait, since we are early adopters and the cage wasn't available for a couple months after ordering).

Buyers have a long list of things to look for when selecting a bike. But if rear-ending is high on your list of concerns, I highly recommend the XPedition with Orbitor passenger cage. I think the running boards and seat cushions are extra now, but they were free at the time I ordered mine. So be sure to order those as well.