well, if you put it that way then bitcoin is centralized by its core developers and litecoin is centralized by charlie lee 

but that's not what i meant about a coin being centralized. eth has been edited to make up for the coins it lost in the dao. vitalik tweeted some time ago that eth will just fork again if any mishaps happen to eth and so some users taunted that eth be renamed forkcoin... i will have to look for that comment so i can add it as reference here. anyway, as for the other coins, they are decentralized as none did what eth has done...