I've also read an article relates to which blood is the Mosquito' favorite,
And it gives O blood as the answer, cause basically high percentages of O Blood People spread on Africa continent, Indian and Papua. Beside that bad scale, also has a good news, cause O Blood evolves more resistant to the Mosquito's bite than any others Blood Type, It also results in Strong Immune System.
Also, People who easily get red mark by Mosquito's biting are usually O Blood Type, it's caused O Blood Type prone to be Diabetic, since Their bodies contain more Carbohydrate/Sugar than others, so They would also suffer hard, once They were mosquito' biting or bleed.
I thought B Blood Type has the lowest percentage by Mosquito' biting, since Their geography spread around High Land where the temperature is quite cool or even cold, like in Tibet. And They were naturally Nomaden.