Do I perceive different levels of risk for different types of riding?
Yes, but not based on the type of motorcycle (cruiser, vs chopper, vs sport bike). The dangers at 60 mph in an uncontrolled environment are pretty close to the same for each type of motorcycle.
To me, the level of risk has more to do with the rider and the environment. Smart riders will select the proper machine and safety equipment for their intended purposes.
Riders with less knowledge will either improve their knowledge or improve the gene pool.