Ive got an offer from both, Im going to put surrey as my insurance amd royal holloway as my firm. It depends on your friend what he would prefer, they are both campus unis, but the vibe i got from surrey is that its a more fun place than RH. Surrey has good employment stats but this is due to the placement year, 70-80% of surrey students do it, so for your friend to be employable like them he would have to do that year, whether he likes the idea of not. With Royal holloway you have the carreer services of the uni of london, so the same services are offered to you that LSE and UCL students receive. So it all depends on what your friend prefers at the end of the day, but im firming RH, if you have any questions PM coz i visisted both.