we are two girls (21 and 22) going to the greek islands in mid to late-june. We are going for the beaches and partying. however, we have to cut out one island due to time constraints. we are stopping in corfu and ios…but have only time for either
mykonos or santorini.

any suggestions?? length of time in each island?? which of the above two will we get the most out of??thanks.