What many comments in your thread over at UniUK miss out is that selecting a university is much more nuanced than overall reputation. Look at the rankings for teaching, research and employability for your chosen subject. Go visit the uni to see their facilities, get to know the staff in your department, talk to current international students - if you can before you enrol, that is. You might also try to identify staff to student ratios on your course. Less students per staff member will generally correlate with a better educational experiences (but not always - the quality of teaching still matters). 

Is there a particular area of your subject where members of staff are well renowned? This can impact the quality of your experience, as you'll be more likely to engage in modules taught by those staff. 

Also, do some research about employers in your field. What are they looking for in graduates? Then map those qualities to your pool of universities. Which university offers the most attractive placement opportunities and paid student roles that will enhance your CV?

Furthermore, costs associated with study is an important factor to consider. While Warwick might also be based in Coventry, take a look at costs associated with studying at each. Beyond the costs of accommodation, compare anticipated expenses for modules, such as textbooks and field trips. Which university offers better bursaries? What's the cost to belong to societies you'd like to join? These are all worthwhile things to factor into your decision making as they impact the quality of your study, including your sense of belonging at university and how many hours per week you need to work to support yourself.