Helloooo
You are right. Compared to Durham/Warwick, I believe notts is less boring, the nightlife is fantastic. And, yes, I notice a difference in workload between law students and my friends on other courses, e.g. education and chemistry. However, the workload is still manageable. You may still have time to travel during the holidays. I put Exeter last because I have a friend who studies law there; she said that it is not the best experience and that the professors are quite harsh on marking. Also, because she and I are international students from hong kong, exeter has a lower reputation than universities like UoM or Warwick among employers and solicitors firms in hk. im not sure if thats the same case for UK employers.
i also heard about the comments made about Durham students. I recommend visiting them during open days or events and taking a campus tour.
Wish you all the best with your UCAS application!