Rainbow Dash is my favorite of the Mane 6! I don't really have an order, but Dash takes the #1 spot for me by far. I've always loved her. Some fun facts about her in my headcanon
- Dash is an only child, but she considers Fluttershy her sister, and is extremely protective over her. She has several cousins but isn't close with any of them.
- She's married to Clear Sky, and they have 3 children together, 4 if you include Wind Sprint, who Rainbow Dash legally adopted. She views Wind no differently than her biological children, and adores her all the same.
- Fastest flier in Equestria babie. Rainbow Dash has broken several records without even trying to. She is probably the fastest flier Equestria has ever known, perhaps even faster than the legendary Commander Hurricane.
- The rainbow mane pattern is incredibly rare and is almost always exclusively hereditary. The chances of having the proper rainbow order is less than 1%.
- Dash's wings are the same shape as a peregrine falcon's, which may explain her flying capability. Pegasi wings come in all different shapes and sizes, and it's common for wing type to be shared among families. For example, Fluttershy's family of pegasi are exclusively gliders, and can't do much stunt work like Rainbow can.
- Besides the Mane 6, and her wife, some of Dash's closest friends include Sunset Shimmer, Gilda, Quibble Pants, Soarin, and Cadence.