According to mosquitos, blood type O is the best: http://www.rhesusnegative.net/rhnegativeforum/index.php/topic,27.0.html
As the question about the type of blood, so the answer is - my blood is a liquid type which color is red...and I believe that the every human have same as mine.
Well, at least you contributed here by voting "I don't know". You should still find out though: 7 Reasons why you should know your blood type