Should I choose a big communicating room as my college room or a tiny room which is not communicating?
?? I’m not quite sure what you mean by a “communicating” room. Could you clarify?
Do you mean a double, where you have a roommate and can communicate with them, or a single where you have no roommate?
A double
I would go with the double…based on your writing I am going to guess you are international, so having a roommate will be good for you.