O+ive is mine .Its best if some one have a positive blood group .Because if you have a negative blood group its hard to find when you need the blood in an emergency .SO TOP BEST BLOOD GROUP IS O+ive. its really good & Recommended if you have a blood group card in your pocket while travailing .A+ive ,B+ive ,O +ive ,AB +ive are good blood groups .But O-ve ,B-ve ,A-ve .Hard to find . Serve More then 2 & Half Years as a Medical Laboratory Technician.