When I was younger my only stipulation was Cold and Plentifull...now it's Guinness and Heineken, in moderation.
Guinness has always been one of my staple brews. When I was in Dublin last yr the Guinness brewery tour was almost as exciting as my Sika deer hunt...they gave out Free Beer...can't beat that!
When I growing up in Rotterdam the Heineken brewery was close to home.
Guess you just like what your'e accustomed to after a while...
After having said all that...when I was posted in Germany many yrs ago I would quaff any locally brewed beer that was cold and plentifull...great beer, excellent flavour, and most importantly...no hangovers.