In this day and age, it's sooo hard. Probably the old standbys:
Guinness
Allagash White/Hoegaarden
Franziskaner weiss
Potential New classic:
---Bell's Official Hazy IPA
Two business trips ago, I told my boss about the Untapped app. Now on every trip, he's constantly fiddling with it, taking photos of his beers, searching for the venue, rating them, etc.
Another colleague finally had had it. "For chrissake, just drink the goddamn beer already!"