Re: GREECE 2013
1) No Martakis please! He will just offer a Sakis copy ethnic dance pop song, nothing more.
2) Despina Vandi would never participate in ESC. If she would do ESC, she'd already have done it. Now she's quite old for a "show" or something like this. Plus, her style is ethnic/folk pop so, again, nothing new.
My alternative choices are Nikos Vertis and Peggy Zina. Although they are both "big names" and I am sure that no big name will be sent by Greece in the following years. From the ones mentioned, only Nicko would be a possibility, he's quite famous, I mean, his songs are hits, but he's not established and he also mentioned in an interview that he wants to do Eurovision in order to help him with an international career.
Don't search any other big names, search some new faces, from talent shows or relatively new acts, not so established.