I think for your subject, Durham has a better reputation - but Warwick is also still an excellent university. It's interesting that you genuinely like both courses, because I've heard they're quite different. Maybe if you consider them both again, you'll find one appeals to you more? Otherwise, there's not much in it in terms of reputation overall, so you might have to choose based on where you'd like to live. In which case, an opinion from me or anybody else won't be that valid, because we'd be choosing based on our own opinions.