Firstly, the rankings do not matter. Prestige/reputation does matter in law, particularly corporate law dealing with corporate finance & commercial matters. Nottingham probably slightly edges the reputation in law specifically, however the margins are pretty small.
It’s important to remember firms aren’t recruiting universities they are recruiting people. Your attitude, your values, your preparation will be by far the biggest factors hen launching a career given the relative differences between the universities.
Will you get distracted, maybe, yes Warwick is quieter but ultimately if you want to go out drinking you’ll find a way, it’s commutable to Coventry for student nights out. And university is more about organization than volume of work. Ive seen medics, engineers, law students, healthcare students on placement all manage to have active social lives & do well academically. I actually find people who are often more socially reliable do better academically, because they are diligent when it comes to personal administration.