Considering Ripple is the company and XRP is their ticker, I don't see how it is not centralized. They literally own most of the XRP tokens themselves and give out to other places themselves as well, when they are starting to work with a bank or whatever company they agree to work with they give XRP to them to use for transactions to make their transactions faster. As a technology it is much better than the current system for banks but as crypto currency that doesn't fly around here.

We do not need coins that are centralized in a way that a whole company can control so much of one coins life. Ripple company can literally say "we are closing shop, we are bankrupted" tomorrow and XRP will die in a minute, that basically shows how much XRP is tied to that company and its success, as long as Ripple is getting bigger, XRP is getting bigger, as soon as Ripple closes shop XRP goes away as well.