Are other denominations of bitcoins named? We could have Rothbards, Pauls, and heck I'd even throw Schiffs in there given his libertarian views despite the fact that he doesn't see the bitcoin as having value...yet.
The problem with them is that they are too political(thus will never be universally recognized by bitcoiners) and they have nothing to do with the development of cryptocurrency technology.
Satoshi is a lot more suitable than anybody else, because he invents bitcoin, and when he disappeared, he becomes a symbol...like batman.