How do you feel about the break run right before that drop?
Smoothness is a function of better wheels and a smoother track. Because the Florida rockets are low slung they feel every weld of the track, it's not as rough as the Matterhorn, but certainly not what I want.
The biggest advantage Disneyland has over Florida though is the onboard audio and a great audio track. Without it, it would be inferior largely for the reasons you mentioned. Tokyo Disney's track doesn't have the onboard audio (or at least didn't when I was there) and it was nowhere near as good a ride as Disneyland's for me.