When you have the finalized aid packages that also include any need-based aid, you can use this calculator to help you with the financial comparisons: http://www.finaid.org/calculators/awardletteradvanced.phtml You also should find out the details about the merit-based aid. Do you need to maintain a certain major and/or GPA in order to keep that aid? Is the aid a fixed amount, or will it go up when tuition and fees increase?
You don’t have to decide just yet, so you have time to visit some of the ones that seem most interesting to you, and to communicate with the department you would be majoring in and with the career center. It is OK for you to ask specific questions about internship and job placement. Don’t be afraid to do that!