the rampage is a considerable amount stiffer than the voo doo if youre a lighter weight skier or just like a softer boot id go with the voodoo, however the rampage is a much more stable boot for those skiers that throw down and ski hard all over the mountain. im a lighter weight skier at 135lbs but my boot of choice is the rampage for park bumps cruisin and even racing. both boots have a 3 piece shell design that is meant to stiffen up as you lay into it more and is also an extremely updated version of the rachele boot or currently known as a fulltilt boot.