ohhhhhh whats all this rubbish i hear about the holt! u'll be fine. i stayed in the holt for 2 years - last year and the year before and had an awesome time! not snobby at all! and theres loads of freshers this year - the postgrads only play a minor part in the hall and altho some of them wil be up for getting involved, the majority wil just keep themselves to themselves! theres some awesome people on the committee this coming year tho and i know theyv got loads planned for you in freshers week. message me if you want to know anything else...but i loved my time at the holt, it will be very weird not living there next year.
hope that helps to clear any worries. theres barely any difference between bill mo and the holt anyway, and the holt is quite convenient for town, tesco, campus etc