My DD appears to be pretty globally gifted, but is particularly strong in writing and art. DS also seems very well-rounded. What I can say about the two of them is that you would never have guessed, based on toddler development, that my DS would read much earlier than my DD. She had way more early reading milestones than he did. Also, she was very interested in math and showed early talent with it and he was blase about it and not too showy (didn't count items early, for instance) till about age 4, when there was a sudden explosion in his mental math skills.
At 9, I find that DD is interested in patterns and math "tricks," very strong on calculation, but does not appear to be top of her class in the subject (she attends a gifted school). I still feel a little confused because I feel there is a math kid inside of her somewhere, but it's not showing much at this point. Oh, she likes geometry.