Wow. It seems some aircraft can roll fast.
I came across this at Aviation Week:
"Aircraft with very long wings, and in particular airplanes with engines distributed outboard along the wings, tend to have more formidable inertia than airplanes with engines located on the fuselage. The amount of fuel in the wings can also make a considerable difference in an aircraft's roll inertia, as an aircraft with fully loaded wings at the beginning of a long-range flight will have a much higher moment of inertia about the aircraft's longitudinal axis than when those tanks are empty. It takes a lot of force to begin rolling those transports. According to the FAA's Airplane Upset Recovery Training Aid, "This greater inertia must be overcome by the rolling moment to produce a roll acceleration and resulting roll angle, and the effect is a sluggish initial response."
So it seems there can be considerable variation. Specific questions:
Does the B757 deploy spoilers at high speed?
As its engines are some distance out from the body, would it be regarded as sluggish in initiating a roll?
Would the amount of fuel in the tanks make a perceptible difference to the initiation of roll?