Queens would be closer to the English dept, although most teaching will take place in College. It also has imposing and grand architecture, and is centrally placed within Oxford. Has a few hidden and pretty spaces.
Hughs is considered to be a 'long' way outside of the center, but in reality is only a 5 minutes bike ride from where you want to be. It has more extensive grounds, and has a more modern (for Oxford) red brick architecture.
You should also bear in mind that the UCAS choice of college is only a preference. The application process can shuffle you around and if you're fortunate enough to be made an offer it may be from an entirely different college.