Disclaimer: I am a rising ninth grader, so if you do not want to take my advice, it is alright. It may be inaccurate or bad, but I want to help, so I hope this does.
Taking two AP math courses in itself will look very good to colleges, in my opinion. AP Calculus AB and AP Calculus BC are both considered extremely difficult courses to take. Since you also want to major in Computer Science, taking AP Computer Science is important. Taking AP Calculus AB and AP Computer Science, in my opinion, will look better than just taking AP Calculus BC because you are taking more than one AP Math at once, and you have AP Computer Science, therefore, in some universities, you may get college credit for that class, boosting you up and saving time and money for college.
Sorry if this is mean but is there a reason why you can not take AP Calculus BC and AP Computer Science? Just curious. Sorry if this is rude.
Have a good day and good luck to you!