I would most like to be trained by Hinata! I feel like she would be a very patient and understanding trainer. She would be able bring herself into my level (which would be so low it's not even funny) in order to show me how I need to improve.
She started out with such a struggle when she was young, so many people doubted her and she pushed herself through it! She made herself strong, and I think I could learn a lot from someone like that.