>>31574164They're not really that alike, unless you haven't watched AG or DP in a while.
May was a bit more short-tempered like Ash, she loved to eat, she battled like a trainer more than a coordinator, she had a shoujo Contest story because of Drew and Harley, she was also more silly and naive.
Dawn was more confident from the start, obviously a lot more girly and into fashion and hairstyles, she was a bit more vain to the point where she expected quick success like her mother, and she also liked to battle and leap into the action alongside Ash.
I like them both for different reasons, but they are different from one another.