Hi Roger,
There really is nothing closer as of yet.
I usually take either the bus, a taxi or the new subway to Plaka,
and stay at either the Hotel Hermes or the Hotel Afroditi on Apollonos
Street. These hotels have been recently upgraded with sound proofed
windows and are quiet.
Hermes and Afroditi are a couple of blocks from Plaka and
Kidathineon Street, so you can grab a quick bite before you crash.
Some of the top rooms even have "the view" of the Acropolis.
The rub is that you must make the 45 minute journey back and forth
from the airport.
Geia sas,
Glenn@Greekislandphotography.com