PTF
I have no experience with any of them, but it looks like the question is whether you want an electric bike (the rads) or an electric motorcycle (the juiced).
The Juiced looks more robustly built with the mag rims, dual suspension, massive frame, and 103lb weight, but it has a lower-grade pedaling components such as a Microshift rear derailleur and of course the sensation of pedaling a 103lb bike. In reality, you'd probably use the motor a lot more than the muscle, but you'd also go faster and with more confidence through rough patches of road. It's primarily a motorcycle and might be out of place on a sidewalk.
The Radrunner weighs 65lbs and the RadWagon 73lbs, which is no joke compared to a typical 33lb bicycle, but it's more like something you'd actually pedal at least half the time. The Shimano components help. Strangely, the cargo capacity of the Radrunner and the RadWagon are higher than the much sturdier Juiced. I suspect you'd ride the Rads in a more leisurely way due to the lack of rear suspension and the tendency to pedal more.