Too difficult to answer because I haven't had any A size cigars. But because I'd have all the time in the world to kick back, I'd try to get some cigars that would take about 3 hours to smoke. Unless there were distractions on this island, you know where I'm going...
How about a daily lineup of
HU Mag 46's for breakfast
PSD4 for lunch
Illusione CG4 or MJ12 for late afternoon or with dinner
T52 DC's to finish off the night
?
Since we have four single cigars according to the question, I'd take a Liga Privada, two creamy Oliva G to share with others, and a maduro of some sort. That way I can share the time in said isolated place with someone else potentially.