For me personally, I would say that I relate most to Pinkie Pie. She is like my spirit animal xD We're both positive, want to be friends with everyone, happy, love to make people laugh, and kinda psychic O.O Also, I've noticed Pinkie seems to doubt herself sometimes, and thinks that her friends don't like her. Like in the "Party of One" episode and the one with Cheese Sandwich. I've been worrying a lot about my friends leaving me because of some dumb drama at school -.- Pinkie is such a huge inspiration to me, and I would love to hear how the others inspire you and how you relate to them!