Greek summer hols, 2015?

Hi,

Am already planning our 2015 summer holiday - and thinking about Greek islands.

Any suggestions for a one- or two-destination holiday for the 2 of us? Logistics is the first question - how to get there with a direct flight and (if necessary) a ferry? We tend to like self-catering & nice hotels in quiet places, and tend to have 2 weeks, a week in one place & a second week somewhere not too far away.

Any ideas at all appreciated.

Thanks!