Cancel your applications and turn your sights somewhere else. Seriously.
Though you probably won’t take my advice, so…NTHU. Better reputation, less foreigners (I think). Depends on what you’re studying, though. Education or Humanities -> NTNU. Engineering or Science -> NTHU.
People start drinking in fourth year. Make friends with the students from Macau and Hong Kong, they know how to drink a bottle of whiskey a night in first year. Get involved in their clubs too, all of their meetings are held at pubs and KTVs over a ridiculous amount of alcohol. Classmates are friendly everywhere if you make the effort. Both schools will have a ridiculous selection of clubs and activities to choose from. Department should be guiding your choice rather than environment and budget, because these two unis are really nothing alike academically.