Mentor or Mastermind, which one?

[Jay Helms]

If you had to choose one over the other, would you rather have an experienced Mentor or participate in a Mastermind, a group of like minded individuals pushing you to succeed while holding you accountable. 

Forbes defines 7 reasons to join a Mastermind Group as (I paraphrased) : Exclusive Community. Advisement. Collaboration. Network Extension. New Learning. Cross-promotion. Think Bigger.

I love that last one. THINK BIGGER. If you’re not involved in a mastermind group, you’re not dedicated to Leveling Up. Join one. Level Up. Think Bigger.

While my mentor always has the golden answer, I feel I I get more out of my mastermind on a daily/consistent basis. 

What are your thoughts?