in my opinion:
the candyshell gives great protection, great shock absorbing - maybe better than the rebel (but i cant be sure).
the candyshell thicker (bulkier?) than the rebel.
personally i love the candyshells look but not everybody likes their bright "frame" shades.
it is hard to remove the candyshell in the first time(s) but when you get used to it, its really fine.
what i dont like in the candyshell:
- the headset port covered too much and you may have to buy an adapter.
- sometimes the painting isnt perfect.
- you can crack the bottom strip if you bend it too much.
what i dont like in the rebel:
- the lip in the sides (around the screen) get loose after awhile.
- the bottom strip get even loosed (google "capsulerebel saggy bottom").
both of them scratched very easily but i think the rebelserpent will be harder to scratch because its not shiny.