Ripple
i think we all should do some home work
from what i've read ripple can become a powerful tool. and bitcoin would be better off if every bitcoiner knew exactly what it is all about and how to use it.
I'm not claiming to have full technical knowledge of Ripple (but neither do I have that level of knowledge of Bitcoin), but I do know enough about it to believe that the arguments in defense of it all seemed to ignore one basic problem many bitcoin followers have: it's centralized, and there is no indication that this will ever change.
Really, because they've said as much repeatedly. Ripple will be decentralized. Period. If upon coming out of beta, it's not decentralized, all those arguments will be valid and I will join the chorus.