Student Exchange Programs

ok , me and this kid John went out 2ce and we never hung out but, now we like eachother and i think he is ganna ask me out soon . But my sister is friends with a foreign exchange student that lives like ten minutes away from us. He has a host brother one year older then me and goes to a private schoool my sister And Mateo (forighn exchange student) want to hook us up .
who do you think i should choose ?