[quote=NarcolepticSailor]
Greece could be a fun choice. It'd be a fairly slow start at first but nationalist movements are bound to take place in the Balkans. You could very possibly regain lost Greek land. Just have to bide your time and use diplomacy.
[/quote]

If I play as Greece while my main goal will to be reclaim former greek lands, I will also have the highly unrealistic goal of reforming the Byzantine Empire.