All blood for now.
Chakra Control:This bloodline gives you 200MaxChakra and 200MaxStamina.
Experienced Shinobi:This bloodline gives you 2000Exp, 50MaxChakra and 50Maxstamina.
Advance Generation:This Bloodline give you 10Regeration Rate.
High Rider:This bloodline gives you 1000ryo.
Healthy Shinobi:This bloodline gives you 200 maxhealth
Also the element you got will help with the jutsu that is based on your element cause more damage and resistance.