If I need to take out a larger amount of private loans in one school than in another, what should I present?
You should pay special attention to the terms and conditions of private loans so that you understand what your obligations would be. Read about federal loans versus private loans.
Can I ask something else? with respect to  types of loans. federal or private are better, what do I do when they offer me financial aid?
You might have to sign the offer and mail it back to the school