Common sense dictates that Bicycles, Scooters, Electric Bikes and Scooter Style E-Bikes are to some degree all dangerous. Having reflectors and lighting on your bike especially for night time opertation, would make a rider more visible. The scooter style have more reflectors, turn signals and headlights so I think Golectric is right in his claim that they would be the "safer" of the two just on that claim alone, because of their visibility. Bicycles can turn on a "dime" which makes them unpredictable to other motorists, the scooters are much more predictable. Who cares which one is safer and which one is better. They are for two different type of people. Why fight over silly things.
I have bicycled my whole life, and I enjoy my scooter style e-bike...It is like comparing Chinese Food and Steak...I like them both.
At least overseas, they fight for power, money and land. Here we argue about who's bicycle is better. Lets just get along...Opinions are fine, but at the end of the day we should accept each others differences. Whether you pedal, throttle or walk, the goal is "one less car on the road".