When I was in Mexico I found the Dos Equis beer better than the local Corona.

Some of my favourite beer has to be the worlds oldest continuously brewed beer called Fraoch (beer brewed with Heather) and Kelpie (beer brewed with seaweed) Mmmmm.

www.heatherale.co.uk

Or for one of the finest beers in the world there is Traquair (a bit pricey though)

www.traquair.co.uk/brewery.html

And if i'm in the local pub then Guinness will just have to do.