The scariest ride that I've been on was Falcon's Fury at Busch Gardens Tampa, imagine going up 300 feet and as you get towards the top of the drop tower, the seats swing back forcing you to look straight at the ground, and then you drop and the seats swing back out at the last minute before you hit the brakes at the bottom of the tower.
I completely agree with you. Give me the biggest baddest coaster on the planet, and I will eat it up. Put me on one of these shady flat rides, and I am asking for the check.