I think this is a very hard question to answer, because it depends on what you are looking for.

By who?

By the neurological society?

By specific patients?

By patients organizations?

And in what way are they better than others?

Do they know more?

Do they have better bed-side manners?

Do they have better PR?

Do they have more publications in the medical literature?

Are they more open-minded?

What is the most important for you?

Knowledge?

Experience?

Technical skills?

Humanistic skills?

Prestige?

Wisdom?

What are your expectations from your physician?

A long remission?

Optimal treatment?

Finding the best way to live with your illness?

A true partner?

The answers to those questions will dictate who is the best of the best for you, which may not be so for someone else or for you at a different period.