TOEFL is the best but IELTS is easy one to take. TOEFL is best because u can apply anywhere you want after u have ur result but when it comes to ielts u first get to chose in which country it would be applicable, there r 3 uk, canada and Australia malet new so if u take the exam for canada that test is only valid for canada but other countries. This is the disadvantage and advantage of em tests