Mythos has it's place. I adore the stuff in Crete, sat in 35C heat having it delivered in a frozen glass. It's never quite tasted the same over here, probably the lack of 35C heat as I have replicated the frozen glass idea.
I've only ever been to Greece once, when I worked just outside Athens for a few days.
It was Heineken in the hotel, although at least it was from a roof top bar with a pool and view of the Acropolis.
On the last day going back to the hotel I told my contact I was going to walk and have a look at it in the morning as I didn't have to leave until twelve.
His advice was to go in the evening as it was cooler then, unfortunate3ly I went straight up to the roof and stopped there for the night.
Next day I wished I'd taken his advice as I lurched up the boiling hot back streets with a banging hangover.