I am interested to apply to an MBA program with emphasis in accounting and management. I will be finishing my B.A. in Journalism, but I do have several business classes on my school records. I want to become a CPA. I hope my degree in journalism do not affect my chances in getting hired by the Big 4 firms.
One of the key traits that Big 4 firms look for in a candidate is his/her communication skill. You can use your BA in Journalism degree as an advantage, not a disadvantage.
Also, very few (usually low tier, although there are exceptions) MBA programs accept undergrads directly into their MBA programs without work experience. One reason why liberal arts undergrads pick MBA over MS degree in Accounting is the fact that liberal arts majors have to take extra business courses required by MS programs in addition to core accounting curriculum. Therefore, it makes sense to get a MBA degree, rather than a MS degree since the total number of credits required will be similar.
However, if your goal is becoming a CPA at a Big 4, I would also recommend looking into top MS Accounting programs in the nation such as Notre Dame, UVA, USC, UTexas and UNC etc. These programs have limit on enrollment and they have over 90% placement rate after graduation. All Big 4 firms target candidates from these schools as a priority candidates.