aarush2

I am a Science student in school, I have interest in Electronics. And I want to build some projects using Arduino and Raspberry pi, for my school exhibition. But I am confused, which board to use, like I want build a robot who, recognize the faces of persons and speaks their names. As far I searched, I am very confused between two boards, I am good at C++, so I should use Arduino, but people suggest me to use Raspberry, can anyone guide me which board to use, for which project. This robot is just a example, i have some more project ideas in my mind, so some general idea is needed for choosing between these two. Please help me out to find out. Thanks