In other words:
If you had to choose one real person to represent Bitcoin (in the public or in a debate against other crypto currency representatives), who should it be?
(It's clear that Bitcoin isn't led or represented by any single one person officially, which is what makes that question so hard to answer. It's also clear that this is feature, not a bug!)
If you talk about the most influential person in bitcoin of course no other than the founder and creator of bitcoin. He is the only very influential person in crypto space in terms of bitcoin. Bitcoin known because of that person and it become valuable and top digital currency among others because of his influence.