If you've visited both, does he have a preference as to where he could see himself living for 3 years ?
My DS is 2nd year at Exeter - he's loved it there, primarily due to the small size of the city, where everywhere is walkable (his 2nd year house is 10 minutes walk to campus/business school) and 10 minutes walk to city centre)
Nightlife isn't as varied as bigger cities, but it has sufficient pubs and 2 nightclubs to satisfy him and his friends.
In terms of sport, mine plays rugby (university 3rds/4ths this year) and whilst the 1st year was really well organised, with lots of opportunities, he's found that Exeter very much favour the BUCS/elite teams for subsequent years. I can't comment for other sports, but that's possibly where Loughborough may be better - I remember when DS was applying being very impressed with their IMS and hall level competition/league structures (reminded me of college level sport from when I was at Durham).
Finally, in terms of industrial placements, having just being through the hell of him applying for those (makes UCAS seem a doddle) one common thing stands out amongst me and my mum friends of students at other universities: the universities actually do very little to help - it's up to the individuals to complete applications, do online tests, video interviews etc and, if you're lucky enough, attend assessment centres. It's an incredibly competitive process and is effectively the same processes as applying for graduate jobs.
Good luck to him wherever he chooses - both arr fantastic opportunities